/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp1x3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 08:37:00,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 08:37:00,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 08:37:00,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 08:37:00,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 08:37:00,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 08:37:00,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 08:37:00,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 08:37:00,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 08:37:00,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 08:37:00,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 08:37:00,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 08:37:00,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 08:37:00,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 08:37:00,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 08:37:00,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 08:37:00,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 08:37:00,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 08:37:00,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 08:37:00,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 08:37:00,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 08:37:00,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 08:37:00,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 08:37:00,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 08:37:00,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 08:37:00,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 08:37:00,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 08:37:00,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 08:37:00,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 08:37:01,009 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 08:37:01,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 08:37:01,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 08:37:01,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 08:37:01,012 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 08:37:01,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 08:37:01,013 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 08:37:01,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 08:37:01,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 08:37:01,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 08:37:01,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 08:37:01,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 08:37:01,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 08:37:01,014 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 08:37:01,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 08:37:01,014 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 08:37:01,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 08:37:01,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 08:37:01,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 08:37:01,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 08:37:01,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 08:37:01,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 08:37:01,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 08:37:01,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 08:37:01,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 08:37:01,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 08:37:01,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 08:37:01,016 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 08:37:01,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 08:37:01,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 08:37:01,016 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 08:37:01,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 08:37:01,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 08:37:01,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 08:37:01,330 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 08:37:01,332 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 08:37:01,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp1x3.wvr.bpl [2021-03-25 08:37:01,343 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp1x3.wvr.bpl' [2021-03-25 08:37:01,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 08:37:01,369 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 08:37:01,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 08:37:01,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 08:37:01,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 08:37:01,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... [2021-03-25 08:37:01,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... [2021-03-25 08:37:01,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 08:37:01,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 08:37:01,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 08:37:01,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 08:37:01,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... [2021-03-25 08:37:01,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... [2021-03-25 08:37:01,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... [2021-03-25 08:37:01,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... [2021-03-25 08:37:01,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... [2021-03-25 08:37:01,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... [2021-03-25 08:37:01,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... [2021-03-25 08:37:01,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 08:37:01,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 08:37:01,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 08:37:01,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 08:37:01,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 08:37:01,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 08:37:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 08:37:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 08:37:01,468 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 08:37:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 08:37:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 08:37:01,468 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 08:37:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 08:37:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 08:37:01,469 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 08:37:01,600 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 08:37:01,602 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 08:37:01,603 INFO L202 PluginConnector]: Adding new model exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 08:37:01 BoogieIcfgContainer [2021-03-25 08:37:01,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 08:37:01,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 08:37:01,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 08:37:01,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 08:37:01,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:37:01" (1/2) ... [2021-03-25 08:37:01,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35dbed6f and model type exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 08:37:01, skipping insertion in model container [2021-03-25 08:37:01,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 08:37:01" (2/2) ... [2021-03-25 08:37:01,611 INFO L111 eAbstractionObserver]: Analyzing ICFG exp1x3.wvr.bpl [2021-03-25 08:37:01,620 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 08:37:01,629 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 08:37:01,630 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 08:37:01,683 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-25 08:37:01,700 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 08:37:01,733 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 08:37:01,733 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 08:37:01,733 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 08:37:01,733 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 08:37:01,733 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 08:37:01,733 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 08:37:01,734 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 08:37:01,734 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 08:37:01,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 54 flow [2021-03-25 08:37:01,770 INFO L129 PetriNetUnfolder]: 2/17 cut-off events. [2021-03-25 08:37:01,770 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 08:37:01,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 2/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 15 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2021-03-25 08:37:01,773 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 19 transitions, 54 flow [2021-03-25 08:37:01,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 15 transitions, 42 flow [2021-03-25 08:37:01,777 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:01,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 15 transitions, 42 flow [2021-03-25 08:37:01,792 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 15 transitions, 42 flow [2021-03-25 08:37:01,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 15 transitions, 42 flow [2021-03-25 08:37:01,809 INFO L129 PetriNetUnfolder]: 2/15 cut-off events. [2021-03-25 08:37:01,809 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 08:37:01,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 15 events. 2/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 15 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2021-03-25 08:37:01,811 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-25 08:37:01,997 INFO L154 LiptonReduction]: Checked pairs total: 20 [2021-03-25 08:37:01,998 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 08:37:01,999 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 223 [2021-03-25 08:37:02,010 INFO L129 PetriNetUnfolder]: 2/9 cut-off events. [2021-03-25 08:37:02,010 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 08:37:02,010 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:02,011 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:02,011 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:02,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:02,015 INFO L82 PathProgramCache]: Analyzing trace with hash 155265115, now seen corresponding path program 1 times [2021-03-25 08:37:02,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:02,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482472925] [2021-03-25 08:37:02,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:02,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:02,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482472925] [2021-03-25 08:37:02,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:37:02,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 08:37:02,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366491633] [2021-03-25 08:37:02,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:37:02,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:02,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:37:02,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:37:02,133 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-03-25 08:37:02,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 10 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:02,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-03-25 08:37:02,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:02,162 INFO L129 PetriNetUnfolder]: 13/32 cut-off events. [2021-03-25 08:37:02,162 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 08:37:02,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 32 events. 13/32 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 59 event pairs, 1 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 52. Up to 20 conditions per place. [2021-03-25 08:37:02,163 INFO L132 encePairwiseOnDemand]: 20/24 looper letters, 7 selfloop transitions, 3 changer transitions 0/14 dead transitions. [2021-03-25 08:37:02,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 14 transitions, 60 flow [2021-03-25 08:37:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:37:02,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:37:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2021-03-25 08:37:02,173 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2021-03-25 08:37:02,173 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 41 transitions. [2021-03-25 08:37:02,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 41 transitions. [2021-03-25 08:37:02,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:02,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 41 transitions. [2021-03-25 08:37:02,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,182 INFO L185 Difference]: Start difference. First operand has 15 places, 10 transitions, 32 flow. Second operand 3 states and 41 transitions. [2021-03-25 08:37:02,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 14 transitions, 60 flow [2021-03-25 08:37:02,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 14 transitions, 52 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:02,186 INFO L241 Difference]: Finished difference. Result has 14 places, 12 transitions, 43 flow [2021-03-25 08:37:02,188 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=14, PETRI_TRANSITIONS=12} [2021-03-25 08:37:02,189 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, -1 predicate places. [2021-03-25 08:37:02,189 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:02,189 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 12 transitions, 43 flow [2021-03-25 08:37:02,189 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 12 transitions, 43 flow [2021-03-25 08:37:02,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 12 transitions, 43 flow [2021-03-25 08:37:02,194 INFO L129 PetriNetUnfolder]: 5/19 cut-off events. [2021-03-25 08:37:02,194 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:37:02,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 19 events. 5/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 18. Up to 8 conditions per place. [2021-03-25 08:37:02,195 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-25 08:37:02,195 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:02,196 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:02,196 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 08:37:02,197 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 12 transitions, 43 flow [2021-03-25 08:37:02,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,197 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:02,197 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:02,197 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 08:37:02,197 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:02,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:02,198 INFO L82 PathProgramCache]: Analyzing trace with hash 521110267, now seen corresponding path program 1 times [2021-03-25 08:37:02,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:02,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469011405] [2021-03-25 08:37:02,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:02,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:02,229 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:37:02,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:02,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:02,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469011405] [2021-03-25 08:37:02,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:37:02,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:37:02,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683114744] [2021-03-25 08:37:02,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 08:37:02,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:02,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 08:37:02,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 08:37:02,250 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-03-25 08:37:02,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 12 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:02,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-03-25 08:37:02,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:02,285 INFO L129 PetriNetUnfolder]: 12/29 cut-off events. [2021-03-25 08:37:02,285 INFO L130 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2021-03-25 08:37:02,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 29 events. 12/29 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 52 event pairs, 1 based on Foata normal form. 5/34 useless extension candidates. Maximal degree in co-relation 51. Up to 18 conditions per place. [2021-03-25 08:37:02,287 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 5 selfloop transitions, 3 changer transitions 4/16 dead transitions. [2021-03-25 08:37:02,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 16 transitions, 75 flow [2021-03-25 08:37:02,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 08:37:02,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 08:37:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2021-03-25 08:37:02,293 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5625 [2021-03-25 08:37:02,293 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 54 transitions. [2021-03-25 08:37:02,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 54 transitions. [2021-03-25 08:37:02,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:02,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 54 transitions. [2021-03-25 08:37:02,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,303 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,303 INFO L185 Difference]: Start difference. First operand has 14 places, 12 transitions, 43 flow. Second operand 4 states and 54 transitions. [2021-03-25 08:37:02,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 16 transitions, 75 flow [2021-03-25 08:37:02,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 16 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:37:02,304 INFO L241 Difference]: Finished difference. Result has 17 places, 12 transitions, 53 flow [2021-03-25 08:37:02,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=53, PETRI_PLACES=17, PETRI_TRANSITIONS=12} [2021-03-25 08:37:02,305 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 2 predicate places. [2021-03-25 08:37:02,305 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:02,305 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 12 transitions, 53 flow [2021-03-25 08:37:02,306 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 12 transitions, 53 flow [2021-03-25 08:37:02,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 16 places, 12 transitions, 53 flow [2021-03-25 08:37:02,314 INFO L129 PetriNetUnfolder]: 8/20 cut-off events. [2021-03-25 08:37:02,314 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 08:37:02,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 20 events. 8/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 1 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 30. Up to 10 conditions per place. [2021-03-25 08:37:02,315 INFO L142 LiptonReduction]: Number of co-enabled transitions 14 [2021-03-25 08:37:02,316 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:02,316 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:02,316 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 08:37:02,317 INFO L480 AbstractCegarLoop]: Abstraction has has 16 places, 12 transitions, 53 flow [2021-03-25 08:37:02,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:02,317 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:02,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 08:37:02,317 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:02,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:02,318 INFO L82 PathProgramCache]: Analyzing trace with hash -146801605, now seen corresponding path program 2 times [2021-03-25 08:37:02,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:02,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403242119] [2021-03-25 08:37:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:02,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:02,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:02,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403242119] [2021-03-25 08:37:02,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148978288] [2021-03-25 08:37:02,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:02,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:37:02,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:02,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-25 08:37:02,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:02,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:02,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:02,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:02,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:02,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:02,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:02,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,457 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-25 08:37:02,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:02,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:02,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-03-25 08:37:02,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274334217] [2021-03-25 08:37:02,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 08:37:02,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:02,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 08:37:02,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 08:37:02,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-03-25 08:37:02,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 53 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:02,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-03-25 08:37:02,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:02,499 INFO L129 PetriNetUnfolder]: 8/22 cut-off events. [2021-03-25 08:37:02,499 INFO L130 PetriNetUnfolder]: For 12/15 co-relation queries the response was YES. [2021-03-25 08:37:02,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 22 events. 8/22 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 1 based on Foata normal form. 5/27 useless extension candidates. Maximal degree in co-relation 46. Up to 13 conditions per place. [2021-03-25 08:37:02,500 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 6 selfloop transitions, 6 changer transitions 0/16 dead transitions. [2021-03-25 08:37:02,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 16 transitions, 93 flow [2021-03-25 08:37:02,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 08:37:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 08:37:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2021-03-25 08:37:02,502 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2021-03-25 08:37:02,502 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 64 transitions. [2021-03-25 08:37:02,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 64 transitions. [2021-03-25 08:37:02,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:02,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 64 transitions. [2021-03-25 08:37:02,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,503 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,503 INFO L185 Difference]: Start difference. First operand has 16 places, 12 transitions, 53 flow. Second operand 5 states and 64 transitions. [2021-03-25 08:37:02,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 16 transitions, 93 flow [2021-03-25 08:37:02,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 16 transitions, 85 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:02,505 INFO L241 Difference]: Finished difference. Result has 20 places, 15 transitions, 82 flow [2021-03-25 08:37:02,505 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=82, PETRI_PLACES=20, PETRI_TRANSITIONS=15} [2021-03-25 08:37:02,505 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 5 predicate places. [2021-03-25 08:37:02,505 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:02,506 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 15 transitions, 82 flow [2021-03-25 08:37:02,506 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 15 transitions, 82 flow [2021-03-25 08:37:02,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 15 transitions, 82 flow [2021-03-25 08:37:02,510 INFO L129 PetriNetUnfolder]: 6/19 cut-off events. [2021-03-25 08:37:02,510 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-25 08:37:02,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 19 events. 6/19 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 1 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 41. Up to 8 conditions per place. [2021-03-25 08:37:02,510 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 08:37:02,511 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:02,511 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:02,511 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 08:37:02,512 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 15 transitions, 82 flow [2021-03-25 08:37:02,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,512 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:02,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:02,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-03-25 08:37:02,732 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:02,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:02,732 INFO L82 PathProgramCache]: Analyzing trace with hash 491557595, now seen corresponding path program 1 times [2021-03-25 08:37:02,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:02,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541123865] [2021-03-25 08:37:02,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:02,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:02,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:02,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541123865] [2021-03-25 08:37:02,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944739328] [2021-03-25 08:37:02,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:02,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-25 08:37:02,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:02,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:02,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:02,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:02,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:02,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:02,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:02,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:02,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:02,806 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-25 08:37:02,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:02,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:02,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:02,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-03-25 08:37:02,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134445797] [2021-03-25 08:37:02,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 08:37:02,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:02,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 08:37:02,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 08:37:02,815 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-03-25 08:37:02,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:02,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-03-25 08:37:02,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:02,844 INFO L129 PetriNetUnfolder]: 10/24 cut-off events. [2021-03-25 08:37:02,844 INFO L130 PetriNetUnfolder]: For 23/27 co-relation queries the response was YES. [2021-03-25 08:37:02,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 24 events. 10/24 cut-off events. For 23/27 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 6/30 useless extension candidates. Maximal degree in co-relation 75. Up to 17 conditions per place. [2021-03-25 08:37:02,845 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 9 selfloop transitions, 6 changer transitions 0/19 dead transitions. [2021-03-25 08:37:02,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 134 flow [2021-03-25 08:37:02,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 08:37:02,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 08:37:02,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2021-03-25 08:37:02,846 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2021-03-25 08:37:02,846 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 64 transitions. [2021-03-25 08:37:02,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 64 transitions. [2021-03-25 08:37:02,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:02,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 64 transitions. [2021-03-25 08:37:02,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,848 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,848 INFO L185 Difference]: Start difference. First operand has 20 places, 15 transitions, 82 flow. Second operand 5 states and 64 transitions. [2021-03-25 08:37:02,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 134 flow [2021-03-25 08:37:02,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 127 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 08:37:02,850 INFO L241 Difference]: Finished difference. Result has 25 places, 18 transitions, 116 flow [2021-03-25 08:37:02,850 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=25, PETRI_TRANSITIONS=18} [2021-03-25 08:37:02,850 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 10 predicate places. [2021-03-25 08:37:02,850 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:02,851 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 18 transitions, 116 flow [2021-03-25 08:37:02,851 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 18 transitions, 116 flow [2021-03-25 08:37:02,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 18 transitions, 116 flow [2021-03-25 08:37:02,855 INFO L129 PetriNetUnfolder]: 9/25 cut-off events. [2021-03-25 08:37:02,855 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-03-25 08:37:02,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 25 events. 9/25 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 69. Up to 11 conditions per place. [2021-03-25 08:37:02,855 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 08:37:02,856 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:02,857 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:02,857 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 08:37:02,857 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 116 flow [2021-03-25 08:37:02,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:02,857 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:02,858 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:03,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:03,079 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:03,080 INFO L82 PathProgramCache]: Analyzing trace with hash -226482211, now seen corresponding path program 1 times [2021-03-25 08:37:03,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:03,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893239345] [2021-03-25 08:37:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:03,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:03,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,118 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 08:37:03,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:03,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893239345] [2021-03-25 08:37:03,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530449130] [2021-03-25 08:37:03,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:03,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:37:03,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:03,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:03,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:03,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:03,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3] total 3 [2021-03-25 08:37:03,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463404965] [2021-03-25 08:37:03,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 08:37:03,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:03,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 08:37:03,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 08:37:03,208 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-03-25 08:37:03,209 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,209 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:03,209 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-03-25 08:37:03,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:03,246 INFO L129 PetriNetUnfolder]: 20/52 cut-off events. [2021-03-25 08:37:03,246 INFO L130 PetriNetUnfolder]: For 90/94 co-relation queries the response was YES. [2021-03-25 08:37:03,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 52 events. 20/52 cut-off events. For 90/94 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 120 event pairs, 1 based on Foata normal form. 5/57 useless extension candidates. Maximal degree in co-relation 187. Up to 24 conditions per place. [2021-03-25 08:37:03,247 INFO L132 encePairwiseOnDemand]: 20/24 looper letters, 17 selfloop transitions, 9 changer transitions 0/30 dead transitions. [2021-03-25 08:37:03,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 30 transitions, 252 flow [2021-03-25 08:37:03,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 08:37:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 08:37:03,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2021-03-25 08:37:03,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2021-03-25 08:37:03,249 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 68 transitions. [2021-03-25 08:37:03,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 68 transitions. [2021-03-25 08:37:03,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:03,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 68 transitions. [2021-03-25 08:37:03,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,250 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,250 INFO L185 Difference]: Start difference. First operand has 25 places, 18 transitions, 116 flow. Second operand 5 states and 68 transitions. [2021-03-25 08:37:03,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 30 transitions, 252 flow [2021-03-25 08:37:03,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 30 transitions, 237 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-25 08:37:03,254 INFO L241 Difference]: Finished difference. Result has 30 places, 24 transitions, 176 flow [2021-03-25 08:37:03,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2021-03-25 08:37:03,254 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 15 predicate places. [2021-03-25 08:37:03,254 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:03,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 24 transitions, 176 flow [2021-03-25 08:37:03,254 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 24 transitions, 176 flow [2021-03-25 08:37:03,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 24 transitions, 176 flow [2021-03-25 08:37:03,260 INFO L129 PetriNetUnfolder]: 15/46 cut-off events. [2021-03-25 08:37:03,261 INFO L130 PetriNetUnfolder]: For 72/74 co-relation queries the response was YES. [2021-03-25 08:37:03,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 46 events. 15/46 cut-off events. For 72/74 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 130 event pairs, 2 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 146. Up to 16 conditions per place. [2021-03-25 08:37:03,261 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 08:37:03,263 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:03,263 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:03,263 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 08:37:03,264 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 176 flow [2021-03-25 08:37:03,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,264 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:03,264 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:03,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:03,480 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:03,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1911019111, now seen corresponding path program 2 times [2021-03-25 08:37:03,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:03,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905863295] [2021-03-25 08:37:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:03,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:03,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:03,526 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 08:37:03,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 08:37:03,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905863295] [2021-03-25 08:37:03,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353309630] [2021-03-25 08:37:03,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:37:03,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:37:03,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:03,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 7 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:03,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:03,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:03,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:03,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:03,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3] total 3 [2021-03-25 08:37:03,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776509740] [2021-03-25 08:37:03,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 08:37:03,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:03,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 08:37:03,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 08:37:03,675 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-03-25 08:37:03,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:03,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-03-25 08:37:03,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:03,720 INFO L129 PetriNetUnfolder]: 30/75 cut-off events. [2021-03-25 08:37:03,720 INFO L130 PetriNetUnfolder]: For 189/195 co-relation queries the response was YES. [2021-03-25 08:37:03,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 75 events. 30/75 cut-off events. For 189/195 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 214 event pairs, 2 based on Foata normal form. 7/82 useless extension candidates. Maximal degree in co-relation 317. Up to 45 conditions per place. [2021-03-25 08:37:03,722 INFO L132 encePairwiseOnDemand]: 20/24 looper letters, 23 selfloop transitions, 9 changer transitions 0/36 dead transitions. [2021-03-25 08:37:03,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 330 flow [2021-03-25 08:37:03,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 08:37:03,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 08:37:03,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2021-03-25 08:37:03,725 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2021-03-25 08:37:03,725 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 68 transitions. [2021-03-25 08:37:03,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 68 transitions. [2021-03-25 08:37:03,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:03,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 68 transitions. [2021-03-25 08:37:03,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,726 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,726 INFO L185 Difference]: Start difference. First operand has 30 places, 24 transitions, 176 flow. Second operand 5 states and 68 transitions. [2021-03-25 08:37:03,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 330 flow [2021-03-25 08:37:03,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 311 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-25 08:37:03,731 INFO L241 Difference]: Finished difference. Result has 35 places, 30 transitions, 236 flow [2021-03-25 08:37:03,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2021-03-25 08:37:03,732 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 20 predicate places. [2021-03-25 08:37:03,732 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:03,732 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 30 transitions, 236 flow [2021-03-25 08:37:03,732 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 30 transitions, 236 flow [2021-03-25 08:37:03,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 236 flow [2021-03-25 08:37:03,741 INFO L129 PetriNetUnfolder]: 21/66 cut-off events. [2021-03-25 08:37:03,741 INFO L130 PetriNetUnfolder]: For 113/119 co-relation queries the response was YES. [2021-03-25 08:37:03,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 66 events. 21/66 cut-off events. For 113/119 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 227 event pairs, 4 based on Foata normal form. 2/66 useless extension candidates. Maximal degree in co-relation 223. Up to 23 conditions per place. [2021-03-25 08:37:03,742 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 08:37:03,744 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:03,744 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:03,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 08:37:03,745 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 236 flow [2021-03-25 08:37:03,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:03,745 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:03,745 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:03,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:03,965 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:03,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:03,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1537596793, now seen corresponding path program 3 times [2021-03-25 08:37:03,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:03,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98381557] [2021-03-25 08:37:03,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:03,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:03,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:03,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:03,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:03,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:03,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:03,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98381557] [2021-03-25 08:37:03,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020571995] [2021-03-25 08:37:03,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:04,021 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 08:37:04,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:04,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:04,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:04,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:04,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:04,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:04,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:04,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:04,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:04,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:04,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:04,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:04,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:04,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:04,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:04,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:04,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:04,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:04,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:04,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:04,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:04,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:04,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:04,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:04,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:04,112 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:04,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:04,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:04,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:04,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:04,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:04,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:04,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142818759] [2021-03-25 08:37:04,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:04,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:04,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:04,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:04,161 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-03-25 08:37:04,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 236 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:04,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:04,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-03-25 08:37:04,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:04,296 INFO L129 PetriNetUnfolder]: 32/89 cut-off events. [2021-03-25 08:37:04,296 INFO L130 PetriNetUnfolder]: For 303/309 co-relation queries the response was YES. [2021-03-25 08:37:04,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 89 events. 32/89 cut-off events. For 303/309 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 295 event pairs, 2 based on Foata normal form. 12/101 useless extension candidates. Maximal degree in co-relation 380. Up to 40 conditions per place. [2021-03-25 08:37:04,297 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 20 selfloop transitions, 21 changer transitions 0/45 dead transitions. [2021-03-25 08:37:04,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 45 transitions, 454 flow [2021-03-25 08:37:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:37:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:37:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 132 transitions. [2021-03-25 08:37:04,299 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-25 08:37:04,299 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 132 transitions. [2021-03-25 08:37:04,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 132 transitions. [2021-03-25 08:37:04,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:04,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 132 transitions. [2021-03-25 08:37:04,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:04,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 24.0) internal successors, (264), 11 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:04,301 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 24.0) internal successors, (264), 11 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:04,302 INFO L185 Difference]: Start difference. First operand has 35 places, 30 transitions, 236 flow. Second operand 10 states and 132 transitions. [2021-03-25 08:37:04,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 45 transitions, 454 flow [2021-03-25 08:37:04,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 427 flow, removed 12 selfloop flow, removed 1 redundant places. [2021-03-25 08:37:04,307 INFO L241 Difference]: Finished difference. Result has 49 places, 40 transitions, 391 flow [2021-03-25 08:37:04,307 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=391, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2021-03-25 08:37:04,307 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 34 predicate places. [2021-03-25 08:37:04,307 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:04,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 40 transitions, 391 flow [2021-03-25 08:37:04,308 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 40 transitions, 391 flow [2021-03-25 08:37:04,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 40 transitions, 391 flow [2021-03-25 08:37:04,317 INFO L129 PetriNetUnfolder]: 28/83 cut-off events. [2021-03-25 08:37:04,317 INFO L130 PetriNetUnfolder]: For 495/503 co-relation queries the response was YES. [2021-03-25 08:37:04,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 83 events. 28/83 cut-off events. For 495/503 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 307 event pairs, 2 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 369. Up to 25 conditions per place. [2021-03-25 08:37:04,318 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-25 08:37:04,427 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 08:37:04,428 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 08:37:04,428 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 121 [2021-03-25 08:37:04,428 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 407 flow [2021-03-25 08:37:04,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:04,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:04,429 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:04,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-03-25 08:37:04,650 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:04,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:04,651 INFO L82 PathProgramCache]: Analyzing trace with hash 632762235, now seen corresponding path program 4 times [2021-03-25 08:37:04,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:04,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345905056] [2021-03-25 08:37:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:04,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:04,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:04,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345905056] [2021-03-25 08:37:04,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994946359] [2021-03-25 08:37:04,693 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:04,717 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-25 08:37:04,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:04,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:04,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:04,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:04,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:04,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:04,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:04,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:04,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:04,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:04,745 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:04,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:04,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:04,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:04,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:04,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:04,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:04,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:04,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:04,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:04,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:04,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:04,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:04,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:04,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:04,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:04,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:04,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:04,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:04,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:04,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077185052] [2021-03-25 08:37:04,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:04,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:04,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:04,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:04,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2021-03-25 08:37:04,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 407 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:04,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:04,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2021-03-25 08:37:04,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:04,954 INFO L129 PetriNetUnfolder]: 36/124 cut-off events. [2021-03-25 08:37:04,955 INFO L130 PetriNetUnfolder]: For 934/934 co-relation queries the response was YES. [2021-03-25 08:37:04,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 124 events. 36/124 cut-off events. For 934/934 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 538 event pairs, 0 based on Foata normal form. 6/130 useless extension candidates. Maximal degree in co-relation 637. Up to 39 conditions per place. [2021-03-25 08:37:04,956 INFO L132 encePairwiseOnDemand]: 21/27 looper letters, 24 selfloop transitions, 40 changer transitions 6/74 dead transitions. [2021-03-25 08:37:04,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 927 flow [2021-03-25 08:37:04,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 08:37:04,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 08:37:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 168 transitions. [2021-03-25 08:37:04,959 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47863247863247865 [2021-03-25 08:37:04,959 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 168 transitions. [2021-03-25 08:37:04,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 168 transitions. [2021-03-25 08:37:04,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:04,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 168 transitions. [2021-03-25 08:37:04,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 13 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:04,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 27.0) internal successors, (378), 14 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:04,961 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 27.0) internal successors, (378), 14 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:04,961 INFO L185 Difference]: Start difference. First operand has 49 places, 40 transitions, 407 flow. Second operand 13 states and 168 transitions. [2021-03-25 08:37:04,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 927 flow [2021-03-25 08:37:04,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 74 transitions, 810 flow, removed 43 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:04,970 INFO L241 Difference]: Finished difference. Result has 60 places, 63 transitions, 717 flow [2021-03-25 08:37:04,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=717, PETRI_PLACES=60, PETRI_TRANSITIONS=63} [2021-03-25 08:37:04,970 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 45 predicate places. [2021-03-25 08:37:04,970 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:04,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 63 transitions, 717 flow [2021-03-25 08:37:04,971 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 63 transitions, 717 flow [2021-03-25 08:37:04,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 63 transitions, 717 flow [2021-03-25 08:37:04,981 INFO L129 PetriNetUnfolder]: 34/111 cut-off events. [2021-03-25 08:37:04,981 INFO L130 PetriNetUnfolder]: For 842/843 co-relation queries the response was YES. [2021-03-25 08:37:04,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 111 events. 34/111 cut-off events. For 842/843 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 462 event pairs, 1 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 545. Up to 30 conditions per place. [2021-03-25 08:37:04,983 INFO L142 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-25 08:37:05,043 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:05,043 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:05,043 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-25 08:37:05,044 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 63 transitions, 733 flow [2021-03-25 08:37:05,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:05,044 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:05,044 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:05,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:05,252 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:05,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:05,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1894473014, now seen corresponding path program 1 times [2021-03-25 08:37:05,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:05,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116420863] [2021-03-25 08:37:05,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:05,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:05,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,301 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:05,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:05,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:05,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116420863] [2021-03-25 08:37:05,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42694057] [2021-03-25 08:37:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:05,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:05,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:05,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:05,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:05,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:05,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:05,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:05,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:05,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:05,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:05,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:05,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:05,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:37:05,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314531855] [2021-03-25 08:37:05,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:05,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:05,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:05,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:05,414 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2021-03-25 08:37:05,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 63 transitions, 733 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:05,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:05,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2021-03-25 08:37:05,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:05,511 INFO L129 PetriNetUnfolder]: 54/182 cut-off events. [2021-03-25 08:37:05,511 INFO L130 PetriNetUnfolder]: For 1533/1533 co-relation queries the response was YES. [2021-03-25 08:37:05,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 182 events. 54/182 cut-off events. For 1533/1533 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 900 event pairs, 2 based on Foata normal form. 2/184 useless extension candidates. Maximal degree in co-relation 1015. Up to 86 conditions per place. [2021-03-25 08:37:05,514 INFO L132 encePairwiseOnDemand]: 21/29 looper letters, 63 selfloop transitions, 32 changer transitions 1/100 dead transitions. [2021-03-25 08:37:05,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 100 transitions, 1396 flow [2021-03-25 08:37:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:05,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2021-03-25 08:37:05,515 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2021-03-25 08:37:05,515 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 90 transitions. [2021-03-25 08:37:05,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 90 transitions. [2021-03-25 08:37:05,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:05,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 90 transitions. [2021-03-25 08:37:05,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:05,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 29.0) internal successors, (203), 7 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:05,517 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 29.0) internal successors, (203), 7 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:05,517 INFO L185 Difference]: Start difference. First operand has 60 places, 63 transitions, 733 flow. Second operand 6 states and 90 transitions. [2021-03-25 08:37:05,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 100 transitions, 1396 flow [2021-03-25 08:37:05,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 100 transitions, 1113 flow, removed 134 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:05,527 INFO L241 Difference]: Finished difference. Result has 64 places, 83 transitions, 848 flow [2021-03-25 08:37:05,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=848, PETRI_PLACES=64, PETRI_TRANSITIONS=83} [2021-03-25 08:37:05,527 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 49 predicate places. [2021-03-25 08:37:05,527 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:05,527 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 83 transitions, 848 flow [2021-03-25 08:37:05,528 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 83 transitions, 848 flow [2021-03-25 08:37:05,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 83 transitions, 848 flow [2021-03-25 08:37:05,543 INFO L129 PetriNetUnfolder]: 54/179 cut-off events. [2021-03-25 08:37:05,543 INFO L130 PetriNetUnfolder]: For 814/815 co-relation queries the response was YES. [2021-03-25 08:37:05,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 179 events. 54/179 cut-off events. For 814/815 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 895 event pairs, 3 based on Foata normal form. 1/180 useless extension candidates. Maximal degree in co-relation 778. Up to 46 conditions per place. [2021-03-25 08:37:05,545 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-25 08:37:05,643 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:05,643 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:05,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-03-25 08:37:05,644 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 82 transitions, 851 flow [2021-03-25 08:37:05,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:05,644 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:05,644 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:05,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:05,860 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:05,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:05,860 INFO L82 PathProgramCache]: Analyzing trace with hash -880040800, now seen corresponding path program 1 times [2021-03-25 08:37:05,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:05,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551141146] [2021-03-25 08:37:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:05,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:05,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:05,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:05,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551141146] [2021-03-25 08:37:05,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104300208] [2021-03-25 08:37:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:05,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:05,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:05,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:05,933 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:37:05,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:05,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:05,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:05,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:05,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:05,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:05,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:05,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:05,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:05,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:05,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:05,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:05,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:05,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:05,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:05,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:05,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:05,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:05,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:05,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:05,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:05,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:05,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:05,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:05,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:05,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:05,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:05,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-03-25 08:37:05,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84495294] [2021-03-25 08:37:05,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:37:05,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:05,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:37:05,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:37:05,992 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 31 [2021-03-25 08:37:05,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 82 transitions, 851 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:05,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:05,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 31 [2021-03-25 08:37:05,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:06,056 INFO L129 PetriNetUnfolder]: 53/184 cut-off events. [2021-03-25 08:37:06,056 INFO L130 PetriNetUnfolder]: For 871/877 co-relation queries the response was YES. [2021-03-25 08:37:06,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 184 events. 53/184 cut-off events. For 871/877 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 921 event pairs, 0 based on Foata normal form. 7/191 useless extension candidates. Maximal degree in co-relation 894. Up to 72 conditions per place. [2021-03-25 08:37:06,058 INFO L132 encePairwiseOnDemand]: 25/31 looper letters, 68 selfloop transitions, 13 changer transitions 3/88 dead transitions. [2021-03-25 08:37:06,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 88 transitions, 1103 flow [2021-03-25 08:37:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:06,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2021-03-25 08:37:06,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42473118279569894 [2021-03-25 08:37:06,059 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 79 transitions. [2021-03-25 08:37:06,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 79 transitions. [2021-03-25 08:37:06,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:06,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 79 transitions. [2021-03-25 08:37:06,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,061 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,062 INFO L185 Difference]: Start difference. First operand has 63 places, 82 transitions, 851 flow. Second operand 6 states and 79 transitions. [2021-03-25 08:37:06,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 88 transitions, 1103 flow [2021-03-25 08:37:06,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 88 transitions, 1021 flow, removed 41 selfloop flow, removed 1 redundant places. [2021-03-25 08:37:06,070 INFO L241 Difference]: Finished difference. Result has 68 places, 80 transitions, 781 flow [2021-03-25 08:37:06,071 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=781, PETRI_PLACES=68, PETRI_TRANSITIONS=80} [2021-03-25 08:37:06,072 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 53 predicate places. [2021-03-25 08:37:06,072 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:06,072 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 80 transitions, 781 flow [2021-03-25 08:37:06,072 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 80 transitions, 781 flow [2021-03-25 08:37:06,073 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 80 transitions, 781 flow [2021-03-25 08:37:06,086 INFO L129 PetriNetUnfolder]: 53/172 cut-off events. [2021-03-25 08:37:06,086 INFO L130 PetriNetUnfolder]: For 872/873 co-relation queries the response was YES. [2021-03-25 08:37:06,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 172 events. 53/172 cut-off events. For 872/873 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 849 event pairs, 3 based on Foata normal form. 1/173 useless extension candidates. Maximal degree in co-relation 792. Up to 44 conditions per place. [2021-03-25 08:37:06,088 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 08:37:06,096 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:06,096 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:06,097 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-25 08:37:06,098 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 80 transitions, 781 flow [2021-03-25 08:37:06,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,098 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:06,098 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:06,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-03-25 08:37:06,320 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:06,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:06,320 INFO L82 PathProgramCache]: Analyzing trace with hash -21166270, now seen corresponding path program 1 times [2021-03-25 08:37:06,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:06,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116911626] [2021-03-25 08:37:06,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:06,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:06,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:06,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:06,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116911626] [2021-03-25 08:37:06,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245353295] [2021-03-25 08:37:06,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:06,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:37:06,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:06,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:06,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:06,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:06,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:06,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:06,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:06,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:06,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:06,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:06,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:06,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:06,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:06,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:06,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:06,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:06,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:06,425 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:06,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:06,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:06,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:06,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:06,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:06,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-03-25 08:37:06,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162541497] [2021-03-25 08:37:06,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:37:06,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:06,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:37:06,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:37:06,447 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 31 [2021-03-25 08:37:06,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 80 transitions, 781 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:06,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 31 [2021-03-25 08:37:06,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:06,565 INFO L129 PetriNetUnfolder]: 59/188 cut-off events. [2021-03-25 08:37:06,565 INFO L130 PetriNetUnfolder]: For 1073/1078 co-relation queries the response was YES. [2021-03-25 08:37:06,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 188 events. 59/188 cut-off events. For 1073/1078 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 917 event pairs, 3 based on Foata normal form. 12/200 useless extension candidates. Maximal degree in co-relation 996. Up to 133 conditions per place. [2021-03-25 08:37:06,567 INFO L132 encePairwiseOnDemand]: 25/31 looper letters, 70 selfloop transitions, 21 changer transitions 0/95 dead transitions. [2021-03-25 08:37:06,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 95 transitions, 1127 flow [2021-03-25 08:37:06,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:37:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:37:06,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 104 transitions. [2021-03-25 08:37:06,568 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41935483870967744 [2021-03-25 08:37:06,568 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 104 transitions. [2021-03-25 08:37:06,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 104 transitions. [2021-03-25 08:37:06,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:06,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 104 transitions. [2021-03-25 08:37:06,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 31.0) internal successors, (279), 9 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,570 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 31.0) internal successors, (279), 9 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,570 INFO L185 Difference]: Start difference. First operand has 65 places, 80 transitions, 781 flow. Second operand 8 states and 104 transitions. [2021-03-25 08:37:06,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 95 transitions, 1127 flow [2021-03-25 08:37:06,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 95 transitions, 1119 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:06,579 INFO L241 Difference]: Finished difference. Result has 72 places, 90 transitions, 968 flow [2021-03-25 08:37:06,579 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=968, PETRI_PLACES=72, PETRI_TRANSITIONS=90} [2021-03-25 08:37:06,579 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 57 predicate places. [2021-03-25 08:37:06,580 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:06,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 90 transitions, 968 flow [2021-03-25 08:37:06,580 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 90 transitions, 968 flow [2021-03-25 08:37:06,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 90 transitions, 968 flow [2021-03-25 08:37:06,596 INFO L129 PetriNetUnfolder]: 59/185 cut-off events. [2021-03-25 08:37:06,596 INFO L130 PetriNetUnfolder]: For 1211/1212 co-relation queries the response was YES. [2021-03-25 08:37:06,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 185 events. 59/185 cut-off events. For 1211/1212 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 911 event pairs, 2 based on Foata normal form. 1/186 useless extension candidates. Maximal degree in co-relation 870. Up to 47 conditions per place. [2021-03-25 08:37:06,598 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 08:37:06,649 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:06,649 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:06,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-03-25 08:37:06,650 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 90 transitions, 979 flow [2021-03-25 08:37:06,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,650 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:06,650 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:06,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:06,864 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:06,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:06,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1890778930, now seen corresponding path program 1 times [2021-03-25 08:37:06,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:06,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404721423] [2021-03-25 08:37:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:06,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:06,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:06,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404721423] [2021-03-25 08:37:06,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881539197] [2021-03-25 08:37:06,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:06,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:06,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:06,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:06,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:06,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:06,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:06,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:06,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:06,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:06,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:06,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:06,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:06,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:06,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:06,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:06,970 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:06,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:06,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:06,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:06,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:06,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:06,976 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:37:06,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:06,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:06,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:06,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:06,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-25 08:37:06,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669189273] [2021-03-25 08:37:06,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:37:06,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:06,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:37:06,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:37:06,984 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2021-03-25 08:37:06,984 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 90 transitions, 979 flow. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:06,984 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:06,984 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2021-03-25 08:37:06,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:07,197 INFO L129 PetriNetUnfolder]: 90/303 cut-off events. [2021-03-25 08:37:07,197 INFO L130 PetriNetUnfolder]: For 2473/2479 co-relation queries the response was YES. [2021-03-25 08:37:07,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1944 conditions, 303 events. 90/303 cut-off events. For 2473/2479 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1838 event pairs, 5 based on Foata normal form. 8/311 useless extension candidates. Maximal degree in co-relation 1749. Up to 89 conditions per place. [2021-03-25 08:37:07,200 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 64 selfloop transitions, 96 changer transitions 2/166 dead transitions. [2021-03-25 08:37:07,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 166 transitions, 2374 flow [2021-03-25 08:37:07,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 08:37:07,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 08:37:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 185 transitions. [2021-03-25 08:37:07,202 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44471153846153844 [2021-03-25 08:37:07,202 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 185 transitions. [2021-03-25 08:37:07,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 185 transitions. [2021-03-25 08:37:07,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:07,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 185 transitions. [2021-03-25 08:37:07,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 14.23076923076923) internal successors, (185), 13 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:07,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 32.0) internal successors, (448), 14 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:07,205 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 32.0) internal successors, (448), 14 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:07,205 INFO L185 Difference]: Start difference. First operand has 72 places, 90 transitions, 979 flow. Second operand 13 states and 185 transitions. [2021-03-25 08:37:07,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 166 transitions, 2374 flow [2021-03-25 08:37:07,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 166 transitions, 2178 flow, removed 82 selfloop flow, removed 5 redundant places. [2021-03-25 08:37:07,224 INFO L241 Difference]: Finished difference. Result has 82 places, 136 transitions, 1788 flow [2021-03-25 08:37:07,225 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1788, PETRI_PLACES=82, PETRI_TRANSITIONS=136} [2021-03-25 08:37:07,225 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 67 predicate places. [2021-03-25 08:37:07,225 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:07,225 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 136 transitions, 1788 flow [2021-03-25 08:37:07,225 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 136 transitions, 1788 flow [2021-03-25 08:37:07,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 136 transitions, 1788 flow [2021-03-25 08:37:07,255 INFO L129 PetriNetUnfolder]: 90/304 cut-off events. [2021-03-25 08:37:07,255 INFO L130 PetriNetUnfolder]: For 2622/2623 co-relation queries the response was YES. [2021-03-25 08:37:07,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1851 conditions, 304 events. 90/304 cut-off events. For 2622/2623 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1823 event pairs, 8 based on Foata normal form. 1/305 useless extension candidates. Maximal degree in co-relation 1676. Up to 89 conditions per place. [2021-03-25 08:37:07,259 INFO L142 LiptonReduction]: Number of co-enabled transitions 56 [2021-03-25 08:37:07,277 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:07,277 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:07,277 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-25 08:37:07,277 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 136 transitions, 1788 flow [2021-03-25 08:37:07,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:07,278 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:07,278 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:07,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:07,492 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:07,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:07,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1624993372, now seen corresponding path program 1 times [2021-03-25 08:37:07,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:07,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887672994] [2021-03-25 08:37:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:07,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:07,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:07,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:07,530 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:07,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:07,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:07,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887672994] [2021-03-25 08:37:07,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521212069] [2021-03-25 08:37:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:07,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:07,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:07,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:07,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:07,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:07,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:07,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:07,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:07,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:07,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:07,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:07,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:07,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:37:07,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:07,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:07,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 5 [2021-03-25 08:37:07,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421085690] [2021-03-25 08:37:07,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:37:07,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:07,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:37:07,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:37:07,628 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2021-03-25 08:37:07,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 136 transitions, 1788 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:07,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:07,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2021-03-25 08:37:07,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:07,751 INFO L129 PetriNetUnfolder]: 102/350 cut-off events. [2021-03-25 08:37:07,751 INFO L130 PetriNetUnfolder]: For 3494/3500 co-relation queries the response was YES. [2021-03-25 08:37:07,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2485 conditions, 350 events. 102/350 cut-off events. For 3494/3500 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2285 event pairs, 9 based on Foata normal form. 8/358 useless extension candidates. Maximal degree in co-relation 2254. Up to 199 conditions per place. [2021-03-25 08:37:07,755 INFO L132 encePairwiseOnDemand]: 26/32 looper letters, 123 selfloop transitions, 43 changer transitions 4/174 dead transitions. [2021-03-25 08:37:07,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 174 transitions, 2720 flow [2021-03-25 08:37:07,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:37:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:37:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 104 transitions. [2021-03-25 08:37:07,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2021-03-25 08:37:07,756 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 104 transitions. [2021-03-25 08:37:07,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 104 transitions. [2021-03-25 08:37:07,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:07,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 104 transitions. [2021-03-25 08:37:07,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:07,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:07,758 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:07,758 INFO L185 Difference]: Start difference. First operand has 82 places, 136 transitions, 1788 flow. Second operand 7 states and 104 transitions. [2021-03-25 08:37:07,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 174 transitions, 2720 flow [2021-03-25 08:37:07,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 174 transitions, 2459 flow, removed 128 selfloop flow, removed 1 redundant places. [2021-03-25 08:37:07,780 INFO L241 Difference]: Finished difference. Result has 90 places, 151 transitions, 1954 flow [2021-03-25 08:37:07,781 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1609, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1954, PETRI_PLACES=90, PETRI_TRANSITIONS=151} [2021-03-25 08:37:07,781 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 75 predicate places. [2021-03-25 08:37:07,781 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:07,781 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 151 transitions, 1954 flow [2021-03-25 08:37:07,781 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 151 transitions, 1954 flow [2021-03-25 08:37:07,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 151 transitions, 1954 flow [2021-03-25 08:37:07,817 INFO L129 PetriNetUnfolder]: 102/359 cut-off events. [2021-03-25 08:37:07,817 INFO L130 PetriNetUnfolder]: For 3196/3197 co-relation queries the response was YES. [2021-03-25 08:37:07,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2167 conditions, 359 events. 102/359 cut-off events. For 3196/3197 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2389 event pairs, 11 based on Foata normal form. 1/360 useless extension candidates. Maximal degree in co-relation 1925. Up to 109 conditions per place. [2021-03-25 08:37:07,821 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-25 08:37:07,827 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:07,827 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:07,827 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-03-25 08:37:07,828 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 151 transitions, 1954 flow [2021-03-25 08:37:07,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:07,828 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:07,828 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:08,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-25 08:37:08,051 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:08,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:08,051 INFO L82 PathProgramCache]: Analyzing trace with hash 713809899, now seen corresponding path program 5 times [2021-03-25 08:37:08,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:08,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490135305] [2021-03-25 08:37:08,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:08,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:08,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:08,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490135305] [2021-03-25 08:37:08,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456269510] [2021-03-25 08:37:08,101 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:37:08,125 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-25 08:37:08,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:08,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:08,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:08,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:08,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:08,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:08,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:08,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:08,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:08,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:08,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:08,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:08,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:08,163 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:37:08,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:08,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:08,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:08,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:08,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:08,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:08,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:08,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:08,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:08,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:08,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:08,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:08,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505565856] [2021-03-25 08:37:08,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:08,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:08,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:08,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:08,203 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2021-03-25 08:37:08,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 151 transitions, 1954 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:08,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2021-03-25 08:37:08,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:08,319 INFO L129 PetriNetUnfolder]: 101/341 cut-off events. [2021-03-25 08:37:08,320 INFO L130 PetriNetUnfolder]: For 3303/3309 co-relation queries the response was YES. [2021-03-25 08:37:08,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2370 conditions, 341 events. 101/341 cut-off events. For 3303/3309 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2171 event pairs, 0 based on Foata normal form. 7/348 useless extension candidates. Maximal degree in co-relation 2119. Up to 143 conditions per place. [2021-03-25 08:37:08,324 INFO L132 encePairwiseOnDemand]: 25/32 looper letters, 129 selfloop transitions, 22 changer transitions 1/156 dead transitions. [2021-03-25 08:37:08,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 156 transitions, 2331 flow [2021-03-25 08:37:08,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:37:08,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:37:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 90 transitions. [2021-03-25 08:37:08,326 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2021-03-25 08:37:08,326 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 90 transitions. [2021-03-25 08:37:08,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 90 transitions. [2021-03-25 08:37:08,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:08,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 90 transitions. [2021-03-25 08:37:08,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,327 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,327 INFO L185 Difference]: Start difference. First operand has 90 places, 151 transitions, 1954 flow. Second operand 7 states and 90 transitions. [2021-03-25 08:37:08,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 156 transitions, 2331 flow [2021-03-25 08:37:08,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 156 transitions, 2169 flow, removed 65 selfloop flow, removed 3 redundant places. [2021-03-25 08:37:08,348 INFO L241 Difference]: Finished difference. Result has 93 places, 146 transitions, 1781 flow [2021-03-25 08:37:08,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1731, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1781, PETRI_PLACES=93, PETRI_TRANSITIONS=146} [2021-03-25 08:37:08,349 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 78 predicate places. [2021-03-25 08:37:08,349 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:08,349 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 146 transitions, 1781 flow [2021-03-25 08:37:08,349 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 146 transitions, 1781 flow [2021-03-25 08:37:08,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 146 transitions, 1781 flow [2021-03-25 08:37:08,385 INFO L129 PetriNetUnfolder]: 101/340 cut-off events. [2021-03-25 08:37:08,385 INFO L130 PetriNetUnfolder]: For 3150/3151 co-relation queries the response was YES. [2021-03-25 08:37:08,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 340 events. 101/340 cut-off events. For 3150/3151 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2156 event pairs, 11 based on Foata normal form. 1/341 useless extension candidates. Maximal degree in co-relation 1820. Up to 108 conditions per place. [2021-03-25 08:37:08,389 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-25 08:37:08,395 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:08,395 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:08,395 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-03-25 08:37:08,395 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 146 transitions, 1781 flow [2021-03-25 08:37:08,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:08,395 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:08,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-03-25 08:37:08,612 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:08,612 INFO L82 PathProgramCache]: Analyzing trace with hash 684257227, now seen corresponding path program 6 times [2021-03-25 08:37:08,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:08,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600847460] [2021-03-25 08:37:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:08,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:08,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:08,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600847460] [2021-03-25 08:37:08,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90565172] [2021-03-25 08:37:08,643 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:08,660 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-03-25 08:37:08,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:08,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:08,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:08,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:08,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:08,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:08,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:08,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:08,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:08,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:08,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:08,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:08,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:08,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:08,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:08,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:08,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:08,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:08,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:08,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:08,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:08,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:08,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:08,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:08,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:08,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:08,708 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-03-25 08:37:08,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:08,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:08,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:37:08,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:37:08,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:08,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:08,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:08,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:08,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908537364] [2021-03-25 08:37:08,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:08,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:08,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:08,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:08,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2021-03-25 08:37:08,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 146 transitions, 1781 flow. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:08,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2021-03-25 08:37:08,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:08,876 INFO L129 PetriNetUnfolder]: 111/392 cut-off events. [2021-03-25 08:37:08,876 INFO L130 PetriNetUnfolder]: For 3998/3998 co-relation queries the response was YES. [2021-03-25 08:37:08,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 392 events. 111/392 cut-off events. For 3998/3998 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2609 event pairs, 13 based on Foata normal form. 6/398 useless extension candidates. Maximal degree in co-relation 2371. Up to 194 conditions per place. [2021-03-25 08:37:08,880 INFO L132 encePairwiseOnDemand]: 25/32 looper letters, 102 selfloop transitions, 72 changer transitions 0/178 dead transitions. [2021-03-25 08:37:08,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 178 transitions, 2560 flow [2021-03-25 08:37:08,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:08,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:08,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 124 transitions. [2021-03-25 08:37:08,882 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2021-03-25 08:37:08,882 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 124 transitions. [2021-03-25 08:37:08,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 124 transitions. [2021-03-25 08:37:08,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:08,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 124 transitions. [2021-03-25 08:37:08,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 32.0) internal successors, (320), 10 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,884 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 32.0) internal successors, (320), 10 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,884 INFO L185 Difference]: Start difference. First operand has 92 places, 146 transitions, 1781 flow. Second operand 9 states and 124 transitions. [2021-03-25 08:37:08,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 178 transitions, 2560 flow [2021-03-25 08:37:08,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 178 transitions, 2527 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:08,908 INFO L241 Difference]: Finished difference. Result has 100 places, 165 transitions, 2287 flow [2021-03-25 08:37:08,908 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1750, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2287, PETRI_PLACES=100, PETRI_TRANSITIONS=165} [2021-03-25 08:37:08,908 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 85 predicate places. [2021-03-25 08:37:08,908 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:08,908 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 165 transitions, 2287 flow [2021-03-25 08:37:08,909 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 165 transitions, 2287 flow [2021-03-25 08:37:08,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 165 transitions, 2287 flow [2021-03-25 08:37:08,949 INFO L129 PetriNetUnfolder]: 111/389 cut-off events. [2021-03-25 08:37:08,949 INFO L130 PetriNetUnfolder]: For 4087/4088 co-relation queries the response was YES. [2021-03-25 08:37:08,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2603 conditions, 389 events. 111/389 cut-off events. For 4087/4088 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2616 event pairs, 14 based on Foata normal form. 1/390 useless extension candidates. Maximal degree in co-relation 2339. Up to 126 conditions per place. [2021-03-25 08:37:08,954 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-25 08:37:08,961 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:08,961 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:08,961 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-03-25 08:37:08,962 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 165 transitions, 2287 flow [2021-03-25 08:37:08,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:08,962 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:08,962 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:09,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-03-25 08:37:09,184 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:09,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:09,184 INFO L82 PathProgramCache]: Analyzing trace with hash 916726871, now seen corresponding path program 7 times [2021-03-25 08:37:09,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:09,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408939751] [2021-03-25 08:37:09,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:09,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:09,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:09,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:09,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:09,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408939751] [2021-03-25 08:37:09,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288506116] [2021-03-25 08:37:09,212 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:09,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:09,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:09,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:09,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:09,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:09,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:09,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:09,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:09,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:09,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:09,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:09,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:09,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:09,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:09,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:09,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:09,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:09,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:09,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:09,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:09,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:09,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:09,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:09,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:09,289 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-03-25 08:37:09,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:09,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:37:09,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:37:09,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:09,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:09,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:09,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436917594] [2021-03-25 08:37:09,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:09,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:09,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:09,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:09,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2021-03-25 08:37:09,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 165 transitions, 2287 flow. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:09,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:09,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2021-03-25 08:37:09,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:09,456 INFO L129 PetriNetUnfolder]: 129/467 cut-off events. [2021-03-25 08:37:09,456 INFO L130 PetriNetUnfolder]: For 5008/5008 co-relation queries the response was YES. [2021-03-25 08:37:09,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3396 conditions, 467 events. 129/467 cut-off events. For 5008/5008 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3326 event pairs, 15 based on Foata normal form. 4/471 useless extension candidates. Maximal degree in co-relation 3033. Up to 290 conditions per place. [2021-03-25 08:37:09,484 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 156 selfloop transitions, 54 changer transitions 2/216 dead transitions. [2021-03-25 08:37:09,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 216 transitions, 3359 flow [2021-03-25 08:37:09,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:37:09,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:37:09,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 112 transitions. [2021-03-25 08:37:09,486 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4375 [2021-03-25 08:37:09,486 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 112 transitions. [2021-03-25 08:37:09,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 112 transitions. [2021-03-25 08:37:09,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:09,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 112 transitions. [2021-03-25 08:37:09,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:09,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:09,489 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:09,489 INFO L185 Difference]: Start difference. First operand has 100 places, 165 transitions, 2287 flow. Second operand 8 states and 112 transitions. [2021-03-25 08:37:09,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 216 transitions, 3359 flow [2021-03-25 08:37:09,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 216 transitions, 3280 flow, removed 22 selfloop flow, removed 3 redundant places. [2021-03-25 08:37:09,519 INFO L241 Difference]: Finished difference. Result has 108 places, 193 transitions, 2797 flow [2021-03-25 08:37:09,519 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=2209, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2797, PETRI_PLACES=108, PETRI_TRANSITIONS=193} [2021-03-25 08:37:09,519 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 93 predicate places. [2021-03-25 08:37:09,519 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:09,519 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 193 transitions, 2797 flow [2021-03-25 08:37:09,520 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 193 transitions, 2797 flow [2021-03-25 08:37:09,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 193 transitions, 2797 flow [2021-03-25 08:37:09,567 INFO L129 PetriNetUnfolder]: 129/463 cut-off events. [2021-03-25 08:37:09,567 INFO L130 PetriNetUnfolder]: For 5541/5542 co-relation queries the response was YES. [2021-03-25 08:37:09,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3205 conditions, 463 events. 129/463 cut-off events. For 5541/5542 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3288 event pairs, 16 based on Foata normal form. 1/464 useless extension candidates. Maximal degree in co-relation 2887. Up to 145 conditions per place. [2021-03-25 08:37:09,573 INFO L142 LiptonReduction]: Number of co-enabled transitions 92 [2021-03-25 08:37:09,617 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:37:09,617 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:09,617 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-03-25 08:37:09,618 INFO L480 AbstractCegarLoop]: Abstraction has has 108 places, 193 transitions, 2808 flow [2021-03-25 08:37:09,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:09,618 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:09,618 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:09,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:09,839 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:09,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:09,840 INFO L82 PathProgramCache]: Analyzing trace with hash 890808701, now seen corresponding path program 8 times [2021-03-25 08:37:09,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:09,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080140891] [2021-03-25 08:37:09,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:09,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:09,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:09,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:09,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080140891] [2021-03-25 08:37:09,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997142553] [2021-03-25 08:37:09,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:37:09,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:37:09,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:09,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:09,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:09,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:09,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:09,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:09,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:09,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:09,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:09,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:09,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:09,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:09,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:09,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:09,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:09,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:09,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:09,928 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:37:09,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:09,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:09,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:09,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:09,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:09,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:09,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:09,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:09,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:09,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:09,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:09,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:09,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:09,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:09,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558762922] [2021-03-25 08:37:09,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:09,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:09,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:09,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:09,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2021-03-25 08:37:09,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 193 transitions, 2808 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:09,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:09,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2021-03-25 08:37:09,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:10,153 INFO L129 PetriNetUnfolder]: 140/530 cut-off events. [2021-03-25 08:37:10,153 INFO L130 PetriNetUnfolder]: For 6575/6581 co-relation queries the response was YES. [2021-03-25 08:37:10,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4020 conditions, 530 events. 140/530 cut-off events. For 6575/6581 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3958 event pairs, 0 based on Foata normal form. 9/539 useless extension candidates. Maximal degree in co-relation 3605. Up to 175 conditions per place. [2021-03-25 08:37:10,160 INFO L132 encePairwiseOnDemand]: 23/33 looper letters, 144 selfloop transitions, 94 changer transitions 4/246 dead transitions. [2021-03-25 08:37:10,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 246 transitions, 4144 flow [2021-03-25 08:37:10,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:37:10,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:37:10,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 135 transitions. [2021-03-25 08:37:10,161 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4090909090909091 [2021-03-25 08:37:10,161 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 135 transitions. [2021-03-25 08:37:10,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 135 transitions. [2021-03-25 08:37:10,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:10,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 135 transitions. [2021-03-25 08:37:10,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:10,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:10,162 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:10,163 INFO L185 Difference]: Start difference. First operand has 108 places, 193 transitions, 2808 flow. Second operand 10 states and 135 transitions. [2021-03-25 08:37:10,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 246 transitions, 4144 flow [2021-03-25 08:37:10,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 246 transitions, 4082 flow, removed 28 selfloop flow, removed 1 redundant places. [2021-03-25 08:37:10,202 INFO L241 Difference]: Finished difference. Result has 121 places, 230 transitions, 3735 flow [2021-03-25 08:37:10,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=2745, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3735, PETRI_PLACES=121, PETRI_TRANSITIONS=230} [2021-03-25 08:37:10,202 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 106 predicate places. [2021-03-25 08:37:10,203 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:10,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 230 transitions, 3735 flow [2021-03-25 08:37:10,203 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 230 transitions, 3735 flow [2021-03-25 08:37:10,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 230 transitions, 3735 flow [2021-03-25 08:37:10,264 INFO L129 PetriNetUnfolder]: 139/525 cut-off events. [2021-03-25 08:37:10,265 INFO L130 PetriNetUnfolder]: For 7595/7602 co-relation queries the response was YES. [2021-03-25 08:37:10,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3864 conditions, 525 events. 139/525 cut-off events. For 7595/7602 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3936 event pairs, 13 based on Foata normal form. 2/527 useless extension candidates. Maximal degree in co-relation 3706. Up to 160 conditions per place. [2021-03-25 08:37:10,272 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-25 08:37:10,285 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:10,285 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:10,285 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 83 [2021-03-25 08:37:10,285 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 230 transitions, 3735 flow [2021-03-25 08:37:10,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:10,285 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:10,285 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:10,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-03-25 08:37:10,500 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:10,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:10,500 INFO L82 PathProgramCache]: Analyzing trace with hash -981693997, now seen corresponding path program 1 times [2021-03-25 08:37:10,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:10,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50516833] [2021-03-25 08:37:10,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:10,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:10,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:10,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:10,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50516833] [2021-03-25 08:37:10,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185410653] [2021-03-25 08:37:10,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:10,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:10,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:10,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:10,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:10,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:10,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:10,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:10,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:10,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:10,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:10,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:10,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:10,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:10,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:10,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:10,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:10,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:10,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:10,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:10,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:10,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:10,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:10,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:10,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:10,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:10,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:10,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:10,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:10,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:10,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:10,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:10,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:10,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:10,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:10,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:10,618 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:10,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:10,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:10,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:10,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:10,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:10,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:10,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:10,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:10,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:10,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:10,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:10,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:10,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:10,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:10,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:10,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:10,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278662932] [2021-03-25 08:37:10,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:10,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:10,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:10,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:10,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2021-03-25 08:37:10,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 230 transitions, 3735 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:10,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:10,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2021-03-25 08:37:10,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:10,847 INFO L129 PetriNetUnfolder]: 141/531 cut-off events. [2021-03-25 08:37:10,847 INFO L130 PetriNetUnfolder]: For 7832/7838 co-relation queries the response was YES. [2021-03-25 08:37:10,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4318 conditions, 531 events. 141/531 cut-off events. For 7832/7838 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3953 event pairs, 13 based on Foata normal form. 7/538 useless extension candidates. Maximal degree in co-relation 4150. Up to 392 conditions per place. [2021-03-25 08:37:10,854 INFO L132 encePairwiseOnDemand]: 24/33 looper letters, 211 selfloop transitions, 25 changer transitions 0/240 dead transitions. [2021-03-25 08:37:10,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 240 transitions, 4398 flow [2021-03-25 08:37:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:10,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:10,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 114 transitions. [2021-03-25 08:37:10,855 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3838383838383838 [2021-03-25 08:37:10,855 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 114 transitions. [2021-03-25 08:37:10,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 114 transitions. [2021-03-25 08:37:10,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:10,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 114 transitions. [2021-03-25 08:37:10,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:10,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 33.0) internal successors, (330), 10 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:10,859 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 33.0) internal successors, (330), 10 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:10,859 INFO L185 Difference]: Start difference. First operand has 121 places, 230 transitions, 3735 flow. Second operand 9 states and 114 transitions. [2021-03-25 08:37:10,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 240 transitions, 4398 flow [2021-03-25 08:37:10,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 240 transitions, 4177 flow, removed 101 selfloop flow, removed 3 redundant places. [2021-03-25 08:37:10,909 INFO L241 Difference]: Finished difference. Result has 129 places, 235 transitions, 3696 flow [2021-03-25 08:37:10,910 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=3540, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3696, PETRI_PLACES=129, PETRI_TRANSITIONS=235} [2021-03-25 08:37:10,910 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 114 predicate places. [2021-03-25 08:37:10,910 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:10,910 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 235 transitions, 3696 flow [2021-03-25 08:37:10,910 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 235 transitions, 3696 flow [2021-03-25 08:37:10,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 235 transitions, 3696 flow [2021-03-25 08:37:10,968 INFO L129 PetriNetUnfolder]: 141/517 cut-off events. [2021-03-25 08:37:10,968 INFO L130 PetriNetUnfolder]: For 7473/7480 co-relation queries the response was YES. [2021-03-25 08:37:10,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3788 conditions, 517 events. 141/517 cut-off events. For 7473/7480 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3844 event pairs, 13 based on Foata normal form. 2/519 useless extension candidates. Maximal degree in co-relation 3679. Up to 147 conditions per place. [2021-03-25 08:37:10,975 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-25 08:37:11,165 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:37:11,165 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:37:11,165 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 255 [2021-03-25 08:37:11,166 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 234 transitions, 3726 flow [2021-03-25 08:37:11,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:11,166 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:11,166 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:11,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-03-25 08:37:11,387 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:11,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:11,388 INFO L82 PathProgramCache]: Analyzing trace with hash 831762939, now seen corresponding path program 9 times [2021-03-25 08:37:11,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:11,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602734173] [2021-03-25 08:37:11,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:11,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:11,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:11,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:11,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602734173] [2021-03-25 08:37:11,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676575232] [2021-03-25 08:37:11,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:11,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-25 08:37:11,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:11,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:11,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:11,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:11,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:11,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:11,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:11,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:11,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:11,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:11,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:11,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:11,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:11,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:11,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:11,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:11,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:11,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:11,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:11,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:11,466 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:37:11,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:11,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:11,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:11,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:11,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:11,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:11,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:11,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:11,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:11,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:11,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:11,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:11,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:11,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:11,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:11,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:11,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:11,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201144853] [2021-03-25 08:37:11,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:11,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:11,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:11,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:11,493 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2021-03-25 08:37:11,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 234 transitions, 3726 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:11,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:11,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2021-03-25 08:37:11,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:11,709 INFO L129 PetriNetUnfolder]: 140/515 cut-off events. [2021-03-25 08:37:11,709 INFO L130 PetriNetUnfolder]: For 7610/7621 co-relation queries the response was YES. [2021-03-25 08:37:11,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4206 conditions, 515 events. 140/515 cut-off events. For 7610/7621 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3785 event pairs, 0 based on Foata normal form. 9/524 useless extension candidates. Maximal degree in co-relation 4081. Up to 196 conditions per place. [2021-03-25 08:37:11,715 INFO L132 encePairwiseOnDemand]: 27/37 looper letters, 204 selfloop transitions, 34 changer transitions 1/243 dead transitions. [2021-03-25 08:37:11,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 243 transitions, 4377 flow [2021-03-25 08:37:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 08:37:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 08:37:11,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 145 transitions. [2021-03-25 08:37:11,716 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35626535626535627 [2021-03-25 08:37:11,716 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 145 transitions. [2021-03-25 08:37:11,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 145 transitions. [2021-03-25 08:37:11,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:11,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 145 transitions. [2021-03-25 08:37:11,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:11,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 37.0) internal successors, (444), 12 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:11,718 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 37.0) internal successors, (444), 12 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:11,718 INFO L185 Difference]: Start difference. First operand has 128 places, 234 transitions, 3726 flow. Second operand 11 states and 145 transitions. [2021-03-25 08:37:11,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 243 transitions, 4377 flow [2021-03-25 08:37:11,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 243 transitions, 4255 flow, removed 42 selfloop flow, removed 6 redundant places. [2021-03-25 08:37:11,760 INFO L241 Difference]: Finished difference. Result has 132 places, 234 transitions, 3657 flow [2021-03-25 08:37:11,760 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=3587, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3657, PETRI_PLACES=132, PETRI_TRANSITIONS=234} [2021-03-25 08:37:11,760 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 117 predicate places. [2021-03-25 08:37:11,760 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:11,761 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 234 transitions, 3657 flow [2021-03-25 08:37:11,761 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 234 transitions, 3657 flow [2021-03-25 08:37:11,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 234 transitions, 3657 flow [2021-03-25 08:37:11,816 INFO L129 PetriNetUnfolder]: 140/511 cut-off events. [2021-03-25 08:37:11,816 INFO L130 PetriNetUnfolder]: For 7522/7539 co-relation queries the response was YES. [2021-03-25 08:37:11,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3768 conditions, 511 events. 140/511 cut-off events. For 7522/7539 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3746 event pairs, 13 based on Foata normal form. 5/516 useless extension candidates. Maximal degree in co-relation 3666. Up to 147 conditions per place. [2021-03-25 08:37:11,822 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-25 08:37:11,891 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:11,891 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:11,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 131 [2021-03-25 08:37:11,891 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 232 transitions, 3633 flow [2021-03-25 08:37:11,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:11,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:11,892 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:12,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:12,108 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:12,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:12,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1647460126, now seen corresponding path program 1 times [2021-03-25 08:37:12,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:12,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344076795] [2021-03-25 08:37:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:12,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:12,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:12,134 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:12,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:12,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:12,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344076795] [2021-03-25 08:37:12,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593142731] [2021-03-25 08:37:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:12,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:37:12,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:12,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:12,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:12,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:12,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:12,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:12,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:12,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3] total 3 [2021-03-25 08:37:12,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531786751] [2021-03-25 08:37:12,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 08:37:12,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:12,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 08:37:12,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 08:37:12,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2021-03-25 08:37:12,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 232 transitions, 3633 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:12,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:12,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2021-03-25 08:37:12,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:12,346 INFO L129 PetriNetUnfolder]: 140/527 cut-off events. [2021-03-25 08:37:12,346 INFO L130 PetriNetUnfolder]: For 7842/7921 co-relation queries the response was YES. [2021-03-25 08:37:12,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4202 conditions, 527 events. 140/527 cut-off events. For 7842/7921 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3884 event pairs, 13 based on Foata normal form. 30/557 useless extension candidates. Maximal degree in co-relation 4092. Up to 400 conditions per place. [2021-03-25 08:37:12,352 INFO L132 encePairwiseOnDemand]: 29/39 looper letters, 218 selfloop transitions, 12 changer transitions 1/235 dead transitions. [2021-03-25 08:37:12,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 235 transitions, 4158 flow [2021-03-25 08:37:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 08:37:12,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 08:37:12,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2021-03-25 08:37:12,353 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37435897435897436 [2021-03-25 08:37:12,353 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 73 transitions. [2021-03-25 08:37:12,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 73 transitions. [2021-03-25 08:37:12,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:12,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 73 transitions. [2021-03-25 08:37:12,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:12,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:12,354 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:12,354 INFO L185 Difference]: Start difference. First operand has 130 places, 232 transitions, 3633 flow. Second operand 5 states and 73 transitions. [2021-03-25 08:37:12,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 235 transitions, 4158 flow [2021-03-25 08:37:12,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 235 transitions, 4096 flow, removed 22 selfloop flow, removed 3 redundant places. [2021-03-25 08:37:12,396 INFO L241 Difference]: Finished difference. Result has 133 places, 234 transitions, 3641 flow [2021-03-25 08:37:12,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3571, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3641, PETRI_PLACES=133, PETRI_TRANSITIONS=234} [2021-03-25 08:37:12,397 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 118 predicate places. [2021-03-25 08:37:12,397 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:12,397 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 234 transitions, 3641 flow [2021-03-25 08:37:12,397 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 234 transitions, 3641 flow [2021-03-25 08:37:12,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 234 transitions, 3641 flow [2021-03-25 08:37:12,458 INFO L129 PetriNetUnfolder]: 140/511 cut-off events. [2021-03-25 08:37:12,458 INFO L130 PetriNetUnfolder]: For 7683/7702 co-relation queries the response was YES. [2021-03-25 08:37:12,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3823 conditions, 511 events. 140/511 cut-off events. For 7683/7702 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3748 event pairs, 13 based on Foata normal form. 5/516 useless extension candidates. Maximal degree in co-relation 3718. Up to 147 conditions per place. [2021-03-25 08:37:12,465 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-25 08:37:12,476 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:12,476 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:12,477 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-25 08:37:12,477 INFO L480 AbstractCegarLoop]: Abstraction has has 133 places, 234 transitions, 3641 flow [2021-03-25 08:37:12,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:12,477 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:12,478 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:12,698 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:12,699 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:12,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:12,699 INFO L82 PathProgramCache]: Analyzing trace with hash -7146638, now seen corresponding path program 1 times [2021-03-25 08:37:12,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:12,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529325465] [2021-03-25 08:37:12,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:12,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:12,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:12,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529325465] [2021-03-25 08:37:12,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124099112] [2021-03-25 08:37:12,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:12,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:12,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:12,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:12,751 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:37:12,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:12,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:12,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:12,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:12,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:12,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:12,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:12,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:12,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:12,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:12,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:12,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:12,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:12,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:12,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:12,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:12,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:12,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:12,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:12,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:12,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:12,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:12,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:12,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:12,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:12,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:12,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:12,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:12,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:12,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:12,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:12,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:12,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:12,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:12,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:12,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-03-25 08:37:12,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717128826] [2021-03-25 08:37:12,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:37:12,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:12,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:37:12,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:37:12,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2021-03-25 08:37:12,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 234 transitions, 3641 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:12,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:12,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2021-03-25 08:37:12,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:12,965 INFO L129 PetriNetUnfolder]: 139/513 cut-off events. [2021-03-25 08:37:12,965 INFO L130 PetriNetUnfolder]: For 7954/8035 co-relation queries the response was YES. [2021-03-25 08:37:12,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4218 conditions, 513 events. 139/513 cut-off events. For 7954/8035 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3785 event pairs, 0 based on Foata normal form. 30/543 useless extension candidates. Maximal degree in co-relation 4105. Up to 200 conditions per place. [2021-03-25 08:37:12,972 INFO L132 encePairwiseOnDemand]: 28/39 looper letters, 208 selfloop transitions, 25 changer transitions 3/240 dead transitions. [2021-03-25 08:37:12,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 240 transitions, 4261 flow [2021-03-25 08:37:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:37:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:37:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 105 transitions. [2021-03-25 08:37:12,974 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33653846153846156 [2021-03-25 08:37:12,974 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 105 transitions. [2021-03-25 08:37:12,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 105 transitions. [2021-03-25 08:37:12,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:12,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 105 transitions. [2021-03-25 08:37:12,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:12,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 39.0) internal successors, (351), 9 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:12,976 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 39.0) internal successors, (351), 9 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:12,976 INFO L185 Difference]: Start difference. First operand has 133 places, 234 transitions, 3641 flow. Second operand 8 states and 105 transitions. [2021-03-25 08:37:12,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 240 transitions, 4261 flow [2021-03-25 08:37:13,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 240 transitions, 4235 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:13,020 INFO L241 Difference]: Finished difference. Result has 138 places, 231 transitions, 3601 flow [2021-03-25 08:37:13,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3592, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3601, PETRI_PLACES=138, PETRI_TRANSITIONS=231} [2021-03-25 08:37:13,021 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 123 predicate places. [2021-03-25 08:37:13,021 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:13,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 231 transitions, 3601 flow [2021-03-25 08:37:13,021 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 231 transitions, 3601 flow [2021-03-25 08:37:13,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 231 transitions, 3601 flow [2021-03-25 08:37:13,078 INFO L129 PetriNetUnfolder]: 139/519 cut-off events. [2021-03-25 08:37:13,078 INFO L130 PetriNetUnfolder]: For 8225/8243 co-relation queries the response was YES. [2021-03-25 08:37:13,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3845 conditions, 519 events. 139/519 cut-off events. For 8225/8243 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3886 event pairs, 13 based on Foata normal form. 4/523 useless extension candidates. Maximal degree in co-relation 3740. Up to 146 conditions per place. [2021-03-25 08:37:13,084 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-25 08:37:13,094 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:13,094 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:13,095 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-03-25 08:37:13,095 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 231 transitions, 3601 flow [2021-03-25 08:37:13,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:13,095 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:13,095 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:13,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:13,312 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:13,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:13,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1224185258, now seen corresponding path program 1 times [2021-03-25 08:37:13,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:13,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116393097] [2021-03-25 08:37:13,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:13,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:13,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:13,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:13,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116393097] [2021-03-25 08:37:13,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271839722] [2021-03-25 08:37:13,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:13,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:13,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:13,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:13,375 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:37:13,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:13,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:13,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:13,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:13,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:13,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:13,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:13,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:13,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:13,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:13,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:13,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:13,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:13,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:13,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:13,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:13,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:13,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:13,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:13,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:13,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:13,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:13,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:13,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:13,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:13,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:13,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-03-25 08:37:13,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187701415] [2021-03-25 08:37:13,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:37:13,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:13,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:37:13,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:37:13,414 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2021-03-25 08:37:13,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 231 transitions, 3601 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:13,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:13,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2021-03-25 08:37:13,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:13,566 INFO L129 PetriNetUnfolder]: 138/515 cut-off events. [2021-03-25 08:37:13,567 INFO L130 PetriNetUnfolder]: For 8413/8479 co-relation queries the response was YES. [2021-03-25 08:37:13,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4222 conditions, 515 events. 138/515 cut-off events. For 8413/8479 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3778 event pairs, 0 based on Foata normal form. 15/530 useless extension candidates. Maximal degree in co-relation 4109. Up to 199 conditions per place. [2021-03-25 08:37:13,574 INFO L132 encePairwiseOnDemand]: 30/39 looper letters, 192 selfloop transitions, 36 changer transitions 3/235 dead transitions. [2021-03-25 08:37:13,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 235 transitions, 4164 flow [2021-03-25 08:37:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:13,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:13,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 80 transitions. [2021-03-25 08:37:13,575 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3418803418803419 [2021-03-25 08:37:13,575 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 80 transitions. [2021-03-25 08:37:13,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 80 transitions. [2021-03-25 08:37:13,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:13,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 80 transitions. [2021-03-25 08:37:13,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:13,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:13,585 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:13,585 INFO L185 Difference]: Start difference. First operand has 135 places, 231 transitions, 3601 flow. Second operand 6 states and 80 transitions. [2021-03-25 08:37:13,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 235 transitions, 4164 flow [2021-03-25 08:37:13,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 235 transitions, 4124 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:13,622 INFO L241 Difference]: Finished difference. Result has 135 places, 227 transitions, 3585 flow [2021-03-25 08:37:13,622 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3553, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3585, PETRI_PLACES=135, PETRI_TRANSITIONS=227} [2021-03-25 08:37:13,622 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 120 predicate places. [2021-03-25 08:37:13,622 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:13,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 227 transitions, 3585 flow [2021-03-25 08:37:13,623 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 227 transitions, 3585 flow [2021-03-25 08:37:13,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 227 transitions, 3585 flow [2021-03-25 08:37:13,676 INFO L129 PetriNetUnfolder]: 138/496 cut-off events. [2021-03-25 08:37:13,677 INFO L130 PetriNetUnfolder]: For 7940/7944 co-relation queries the response was YES. [2021-03-25 08:37:13,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3785 conditions, 496 events. 138/496 cut-off events. For 7940/7944 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3629 event pairs, 13 based on Foata normal form. 2/498 useless extension candidates. Maximal degree in co-relation 3678. Up to 144 conditions per place. [2021-03-25 08:37:13,684 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-25 08:37:13,740 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:13,741 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:13,741 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 119 [2021-03-25 08:37:13,741 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 227 transitions, 3603 flow [2021-03-25 08:37:13,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:13,741 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:13,741 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:13,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-03-25 08:37:13,964 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:13,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:13,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1514130525, now seen corresponding path program 1 times [2021-03-25 08:37:13,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:13,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40416867] [2021-03-25 08:37:13,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:13,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:13,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:13,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:13,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:13,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:13,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:13,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40416867] [2021-03-25 08:37:13,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937497803] [2021-03-25 08:37:13,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:37:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:14,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:14,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:14,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,018 WARN L159 QuantifierPusher]: Ignoring assumption. Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:14,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:14,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:14,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:14,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:14,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:14,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:14,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:14,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:14,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:14,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:14,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:14,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:14,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,049 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:14,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:14,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:14,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:14,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:14,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:14,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:14,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501039099] [2021-03-25 08:37:14,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:14,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:14,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:14,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:14,060 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2021-03-25 08:37:14,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 227 transitions, 3603 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:14,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:14,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2021-03-25 08:37:14,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:14,243 INFO L129 PetriNetUnfolder]: 140/515 cut-off events. [2021-03-25 08:37:14,244 INFO L130 PetriNetUnfolder]: For 8107/8107 co-relation queries the response was YES. [2021-03-25 08:37:14,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4256 conditions, 515 events. 140/515 cut-off events. For 8107/8107 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3799 event pairs, 13 based on Foata normal form. 1/516 useless extension candidates. Maximal degree in co-relation 4100. Up to 388 conditions per place. [2021-03-25 08:37:14,248 INFO L132 encePairwiseOnDemand]: 30/40 looper letters, 211 selfloop transitions, 18 changer transitions 0/233 dead transitions. [2021-03-25 08:37:14,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 233 transitions, 4166 flow [2021-03-25 08:37:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:14,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 116 transitions. [2021-03-25 08:37:14,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32222222222222224 [2021-03-25 08:37:14,249 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 116 transitions. [2021-03-25 08:37:14,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 116 transitions. [2021-03-25 08:37:14,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:14,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 116 transitions. [2021-03-25 08:37:14,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:14,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 40.0) internal successors, (400), 10 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:14,250 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 40.0) internal successors, (400), 10 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:14,250 INFO L185 Difference]: Start difference. First operand has 130 places, 227 transitions, 3603 flow. Second operand 9 states and 116 transitions. [2021-03-25 08:37:14,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 233 transitions, 4166 flow [2021-03-25 08:37:14,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 233 transitions, 4106 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:14,284 INFO L241 Difference]: Finished difference. Result has 137 places, 231 transitions, 3661 flow [2021-03-25 08:37:14,284 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=3544, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3661, PETRI_PLACES=137, PETRI_TRANSITIONS=231} [2021-03-25 08:37:14,284 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 122 predicate places. [2021-03-25 08:37:14,284 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:14,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 231 transitions, 3661 flow [2021-03-25 08:37:14,285 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 231 transitions, 3661 flow [2021-03-25 08:37:14,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 231 transitions, 3661 flow [2021-03-25 08:37:14,324 INFO L129 PetriNetUnfolder]: 140/502 cut-off events. [2021-03-25 08:37:14,325 INFO L130 PetriNetUnfolder]: For 7797/7808 co-relation queries the response was YES. [2021-03-25 08:37:14,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3885 conditions, 502 events. 140/502 cut-off events. For 7797/7808 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3676 event pairs, 13 based on Foata normal form. 3/505 useless extension candidates. Maximal degree in co-relation 3804. Up to 145 conditions per place. [2021-03-25 08:37:14,329 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-25 08:37:14,378 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:37:14,378 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:14,378 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-25 08:37:14,379 INFO L480 AbstractCegarLoop]: Abstraction has has 136 places, 230 transitions, 3651 flow [2021-03-25 08:37:14,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:14,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:14,379 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:14,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-03-25 08:37:14,596 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:14,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:14,596 INFO L82 PathProgramCache]: Analyzing trace with hash -210418219, now seen corresponding path program 1 times [2021-03-25 08:37:14,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:14,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275452564] [2021-03-25 08:37:14,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:14,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:14,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:14,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275452564] [2021-03-25 08:37:14,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452654242] [2021-03-25 08:37:14,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:14,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:14,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:14,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:14,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:14,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:14,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:14,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:14,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:14,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:14,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:14,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:14,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:14,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:14,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:14,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:14,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:14,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:14,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:14,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:14,686 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-03-25 08:37:14,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:14,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:14,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:37:14,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:37:14,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:14,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:14,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:14,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-03-25 08:37:14,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543578112] [2021-03-25 08:37:14,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:37:14,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:14,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:37:14,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:37:14,705 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2021-03-25 08:37:14,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 230 transitions, 3651 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:14,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:14,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2021-03-25 08:37:14,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:14,974 INFO L129 PetriNetUnfolder]: 146/531 cut-off events. [2021-03-25 08:37:14,974 INFO L130 PetriNetUnfolder]: For 8440/8448 co-relation queries the response was YES. [2021-03-25 08:37:14,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4449 conditions, 531 events. 146/531 cut-off events. For 8440/8448 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3886 event pairs, 13 based on Foata normal form. 15/546 useless extension candidates. Maximal degree in co-relation 4364. Up to 373 conditions per place. [2021-03-25 08:37:14,981 INFO L132 encePairwiseOnDemand]: 31/41 looper letters, 202 selfloop transitions, 44 changer transitions 0/250 dead transitions. [2021-03-25 08:37:14,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 250 transitions, 4547 flow [2021-03-25 08:37:14,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 08:37:14,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 08:37:14,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 153 transitions. [2021-03-25 08:37:14,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31097560975609756 [2021-03-25 08:37:14,982 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 153 transitions. [2021-03-25 08:37:14,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 153 transitions. [2021-03-25 08:37:14,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:14,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 153 transitions. [2021-03-25 08:37:14,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 12.75) internal successors, (153), 12 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:14,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 41.0) internal successors, (533), 13 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:14,983 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 41.0) internal successors, (533), 13 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:14,983 INFO L185 Difference]: Start difference. First operand has 136 places, 230 transitions, 3651 flow. Second operand 12 states and 153 transitions. [2021-03-25 08:37:14,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 250 transitions, 4547 flow [2021-03-25 08:37:15,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 250 transitions, 4497 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-03-25 08:37:15,031 INFO L241 Difference]: Finished difference. Result has 143 places, 240 transitions, 3951 flow [2021-03-25 08:37:15,031 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3605, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3951, PETRI_PLACES=143, PETRI_TRANSITIONS=240} [2021-03-25 08:37:15,033 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 128 predicate places. [2021-03-25 08:37:15,033 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:15,033 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 240 transitions, 3951 flow [2021-03-25 08:37:15,033 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 240 transitions, 3951 flow [2021-03-25 08:37:15,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 143 places, 240 transitions, 3951 flow [2021-03-25 08:37:15,092 INFO L129 PetriNetUnfolder]: 146/527 cut-off events. [2021-03-25 08:37:15,092 INFO L130 PetriNetUnfolder]: For 8724/8735 co-relation queries the response was YES. [2021-03-25 08:37:15,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4143 conditions, 527 events. 146/527 cut-off events. For 8724/8735 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3886 event pairs, 13 based on Foata normal form. 3/530 useless extension candidates. Maximal degree in co-relation 4059. Up to 149 conditions per place. [2021-03-25 08:37:15,099 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-25 08:37:15,109 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:15,109 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:15,109 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-25 08:37:15,109 INFO L480 AbstractCegarLoop]: Abstraction has has 143 places, 240 transitions, 3951 flow [2021-03-25 08:37:15,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:15,110 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:15,110 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:15,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:15,316 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:15,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:15,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1518748130, now seen corresponding path program 1 times [2021-03-25 08:37:15,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:15,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887814674] [2021-03-25 08:37:15,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:15,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:15,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,348 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:15,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:15,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887814674] [2021-03-25 08:37:15,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568127597] [2021-03-25 08:37:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:15,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:15,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:15,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:15,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:15,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:15,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:15,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:15,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:15,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:15,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:15,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:15,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:15,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:15,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:15,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:15,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:15,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:15,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:15,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:15,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:37:15,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411394912] [2021-03-25 08:37:15,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:15,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:15,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:15,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:15,424 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2021-03-25 08:37:15,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 240 transitions, 3951 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:15,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:15,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2021-03-25 08:37:15,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:15,583 INFO L129 PetriNetUnfolder]: 164/593 cut-off events. [2021-03-25 08:37:15,583 INFO L130 PetriNetUnfolder]: For 10430/10472 co-relation queries the response was YES. [2021-03-25 08:37:15,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5176 conditions, 593 events. 164/593 cut-off events. For 10430/10472 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4447 event pairs, 15 based on Foata normal form. 22/615 useless extension candidates. Maximal degree in co-relation 5031. Up to 423 conditions per place. [2021-03-25 08:37:15,590 INFO L132 encePairwiseOnDemand]: 32/41 looper letters, 239 selfloop transitions, 31 changer transitions 1/275 dead transitions. [2021-03-25 08:37:15,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 275 transitions, 5272 flow [2021-03-25 08:37:15,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:15,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:15,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 89 transitions. [2021-03-25 08:37:15,591 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3617886178861789 [2021-03-25 08:37:15,591 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 89 transitions. [2021-03-25 08:37:15,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 89 transitions. [2021-03-25 08:37:15,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:15,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 89 transitions. [2021-03-25 08:37:15,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:15,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:15,592 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:15,592 INFO L185 Difference]: Start difference. First operand has 143 places, 240 transitions, 3951 flow. Second operand 6 states and 89 transitions. [2021-03-25 08:37:15,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 275 transitions, 5272 flow [2021-03-25 08:37:15,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 275 transitions, 5026 flow, removed 99 selfloop flow, removed 6 redundant places. [2021-03-25 08:37:15,644 INFO L241 Difference]: Finished difference. Result has 145 places, 262 transitions, 4302 flow [2021-03-25 08:37:15,645 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3804, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4302, PETRI_PLACES=145, PETRI_TRANSITIONS=262} [2021-03-25 08:37:15,645 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 130 predicate places. [2021-03-25 08:37:15,645 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:15,645 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 262 transitions, 4302 flow [2021-03-25 08:37:15,645 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 262 transitions, 4302 flow [2021-03-25 08:37:15,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 262 transitions, 4302 flow [2021-03-25 08:37:15,704 INFO L129 PetriNetUnfolder]: 164/589 cut-off events. [2021-03-25 08:37:15,704 INFO L130 PetriNetUnfolder]: For 10024/10035 co-relation queries the response was YES. [2021-03-25 08:37:15,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4746 conditions, 589 events. 164/589 cut-off events. For 10024/10035 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4424 event pairs, 15 based on Foata normal form. 3/592 useless extension candidates. Maximal degree in co-relation 4605. Up to 169 conditions per place. [2021-03-25 08:37:15,709 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 08:37:15,811 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:15,811 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:15,811 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-03-25 08:37:15,812 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 261 transitions, 4312 flow [2021-03-25 08:37:15,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:15,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:15,812 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:16,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-03-25 08:37:16,032 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:16,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:16,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1337749129, now seen corresponding path program 1 times [2021-03-25 08:37:16,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:16,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002946657] [2021-03-25 08:37:16,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:16,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:16,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:16,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:16,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:16,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:16,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002946657] [2021-03-25 08:37:16,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516371389] [2021-03-25 08:37:16,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:16,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:16,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:16,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:16,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:16,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:16,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:16,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:16,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:16,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:16,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:16,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:16,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:16,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:16,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:16,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:16,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:16,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:16,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:16,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:16,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:16,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:16,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:16,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:16,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:16,137 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-03-25 08:37:16,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:16,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:37:16,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:37:16,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:16,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:16,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-03-25 08:37:16,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391444777] [2021-03-25 08:37:16,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:37:16,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:16,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:37:16,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:37:16,150 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2021-03-25 08:37:16,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 261 transitions, 4312 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:16,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:16,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2021-03-25 08:37:16,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:16,385 INFO L129 PetriNetUnfolder]: 184/636 cut-off events. [2021-03-25 08:37:16,386 INFO L130 PetriNetUnfolder]: For 11888/11894 co-relation queries the response was YES. [2021-03-25 08:37:16,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5670 conditions, 636 events. 184/636 cut-off events. For 11888/11894 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4683 event pairs, 15 based on Foata normal form. 24/660 useless extension candidates. Maximal degree in co-relation 5509. Up to 430 conditions per place. [2021-03-25 08:37:16,391 INFO L132 encePairwiseOnDemand]: 33/43 looper letters, 231 selfloop transitions, 72 changer transitions 0/307 dead transitions. [2021-03-25 08:37:16,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 307 transitions, 5686 flow [2021-03-25 08:37:16,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 08:37:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 08:37:16,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 156 transitions. [2021-03-25 08:37:16,393 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3023255813953488 [2021-03-25 08:37:16,393 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 156 transitions. [2021-03-25 08:37:16,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 156 transitions. [2021-03-25 08:37:16,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:16,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 156 transitions. [2021-03-25 08:37:16,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 13.0) internal successors, (156), 12 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:16,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 43.0) internal successors, (559), 13 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:16,395 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 43.0) internal successors, (559), 13 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:16,395 INFO L185 Difference]: Start difference. First operand has 144 places, 261 transitions, 4312 flow. Second operand 12 states and 156 transitions. [2021-03-25 08:37:16,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 307 transitions, 5686 flow [2021-03-25 08:37:16,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 307 transitions, 5518 flow, removed 80 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:16,451 INFO L241 Difference]: Finished difference. Result has 155 places, 290 transitions, 4851 flow [2021-03-25 08:37:16,451 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=4144, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4851, PETRI_PLACES=155, PETRI_TRANSITIONS=290} [2021-03-25 08:37:16,451 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 140 predicate places. [2021-03-25 08:37:16,451 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:16,451 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 290 transitions, 4851 flow [2021-03-25 08:37:16,451 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 290 transitions, 4851 flow [2021-03-25 08:37:16,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 155 places, 290 transitions, 4851 flow [2021-03-25 08:37:16,516 INFO L129 PetriNetUnfolder]: 184/621 cut-off events. [2021-03-25 08:37:16,516 INFO L130 PetriNetUnfolder]: For 12134/12159 co-relation queries the response was YES. [2021-03-25 08:37:16,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5266 conditions, 621 events. 184/621 cut-off events. For 12134/12159 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4528 event pairs, 15 based on Foata normal form. 4/625 useless extension candidates. Maximal degree in co-relation 5128. Up to 188 conditions per place. [2021-03-25 08:37:16,522 INFO L142 LiptonReduction]: Number of co-enabled transitions 142 [2021-03-25 08:37:16,573 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:16,573 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:16,573 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-03-25 08:37:16,574 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 290 transitions, 4867 flow [2021-03-25 08:37:16,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:16,574 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:16,574 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:16,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:16,774 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:16,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:16,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1484673696, now seen corresponding path program 1 times [2021-03-25 08:37:16,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:16,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507358321] [2021-03-25 08:37:16,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:16,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:16,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:16,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:16,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:16,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507358321] [2021-03-25 08:37:16,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175803514] [2021-03-25 08:37:16,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:37:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:16,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:37:16,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:16,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:16,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:16,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:16,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:16,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:16,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:16,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:16,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:16,852 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:16,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:16,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:16,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:16,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:16,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:16,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:16,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:16,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:16,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:16,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:16,858 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:37:16,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:16,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:16,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:16,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:37:16,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713093974] [2021-03-25 08:37:16,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:16,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:16,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:16,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:16,865 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2021-03-25 08:37:16,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 290 transitions, 4867 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:16,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:16,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2021-03-25 08:37:16,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:17,082 INFO L129 PetriNetUnfolder]: 184/643 cut-off events. [2021-03-25 08:37:17,082 INFO L130 PetriNetUnfolder]: For 12362/12407 co-relation queries the response was YES. [2021-03-25 08:37:17,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5848 conditions, 643 events. 184/643 cut-off events. For 12362/12407 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4782 event pairs, 15 based on Foata normal form. 14/657 useless extension candidates. Maximal degree in co-relation 5701. Up to 484 conditions per place. [2021-03-25 08:37:17,090 INFO L132 encePairwiseOnDemand]: 33/44 looper letters, 266 selfloop transitions, 31 changer transitions 1/302 dead transitions. [2021-03-25 08:37:17,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 302 transitions, 5661 flow [2021-03-25 08:37:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 122 transitions. [2021-03-25 08:37:17,091 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30808080808080807 [2021-03-25 08:37:17,091 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 122 transitions. [2021-03-25 08:37:17,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 122 transitions. [2021-03-25 08:37:17,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:17,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 122 transitions. [2021-03-25 08:37:17,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:17,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 44.0) internal successors, (440), 10 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:17,092 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 44.0) internal successors, (440), 10 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:17,092 INFO L185 Difference]: Start difference. First operand has 155 places, 290 transitions, 4867 flow. Second operand 9 states and 122 transitions. [2021-03-25 08:37:17,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 302 transitions, 5661 flow [2021-03-25 08:37:17,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 302 transitions, 5442 flow, removed 70 selfloop flow, removed 6 redundant places. [2021-03-25 08:37:17,145 INFO L241 Difference]: Finished difference. Result has 159 places, 295 transitions, 4842 flow [2021-03-25 08:37:17,145 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4636, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4842, PETRI_PLACES=159, PETRI_TRANSITIONS=295} [2021-03-25 08:37:17,145 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 144 predicate places. [2021-03-25 08:37:17,145 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:17,145 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 295 transitions, 4842 flow [2021-03-25 08:37:17,145 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 295 transitions, 4842 flow [2021-03-25 08:37:17,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 295 transitions, 4842 flow [2021-03-25 08:37:17,211 INFO L129 PetriNetUnfolder]: 184/626 cut-off events. [2021-03-25 08:37:17,212 INFO L130 PetriNetUnfolder]: For 11540/11577 co-relation queries the response was YES. [2021-03-25 08:37:17,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5200 conditions, 626 events. 184/626 cut-off events. For 11540/11577 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4581 event pairs, 15 based on Foata normal form. 4/630 useless extension candidates. Maximal degree in co-relation 5063. Up to 173 conditions per place. [2021-03-25 08:37:17,220 INFO L142 LiptonReduction]: Number of co-enabled transitions 140 [2021-03-25 08:37:17,275 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:17,275 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:17,275 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-03-25 08:37:17,275 INFO L480 AbstractCegarLoop]: Abstraction has has 158 places, 294 transitions, 4830 flow [2021-03-25 08:37:17,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:17,275 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:17,275 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:17,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-03-25 08:37:17,476 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:17,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:17,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1863440149, now seen corresponding path program 1 times [2021-03-25 08:37:17,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:17,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67044539] [2021-03-25 08:37:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:17,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:17,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:17,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:17,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67044539] [2021-03-25 08:37:17,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051300479] [2021-03-25 08:37:17,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:17,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:17,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:17,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:17,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:17,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:17,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:17,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:17,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:17,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:17,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:17,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:17,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:17,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:17,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:17,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:17,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:17,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:17,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:17,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:17,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:17,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:17,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:17,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:17,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:17,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:17,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:17,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:17,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:17,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:17,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:17,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:17,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:17,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:17,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:17,592 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:17,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:17,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:17,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:17,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:17,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:17,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:17,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:17,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:17,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:17,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:17,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:17,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:17,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:17,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:17,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:17,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438567296] [2021-03-25 08:37:17,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:17,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:17,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:17,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:17,605 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2021-03-25 08:37:17,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 294 transitions, 4830 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:17,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:17,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2021-03-25 08:37:17,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:17,855 INFO L129 PetriNetUnfolder]: 186/646 cut-off events. [2021-03-25 08:37:17,855 INFO L130 PetriNetUnfolder]: For 11667/11704 co-relation queries the response was YES. [2021-03-25 08:37:17,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5775 conditions, 646 events. 186/646 cut-off events. For 11667/11704 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4784 event pairs, 15 based on Foata normal form. 22/668 useless extension candidates. Maximal degree in co-relation 5628. Up to 498 conditions per place. [2021-03-25 08:37:17,860 INFO L132 encePairwiseOnDemand]: 33/45 looper letters, 275 selfloop transitions, 21 changer transitions 0/300 dead transitions. [2021-03-25 08:37:17,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 300 transitions, 5554 flow [2021-03-25 08:37:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:17,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:17,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 119 transitions. [2021-03-25 08:37:17,860 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2938271604938272 [2021-03-25 08:37:17,861 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 119 transitions. [2021-03-25 08:37:17,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 119 transitions. [2021-03-25 08:37:17,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:17,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 119 transitions. [2021-03-25 08:37:17,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:17,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 45.0) internal successors, (450), 10 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:17,861 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 45.0) internal successors, (450), 10 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:17,861 INFO L185 Difference]: Start difference. First operand has 158 places, 294 transitions, 4830 flow. Second operand 9 states and 119 transitions. [2021-03-25 08:37:17,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 300 transitions, 5554 flow [2021-03-25 08:37:17,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 300 transitions, 5506 flow, removed 11 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:17,910 INFO L241 Difference]: Finished difference. Result has 167 places, 298 transitions, 4927 flow [2021-03-25 08:37:17,910 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=4782, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4927, PETRI_PLACES=167, PETRI_TRANSITIONS=298} [2021-03-25 08:37:17,910 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 152 predicate places. [2021-03-25 08:37:17,911 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:17,911 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 298 transitions, 4927 flow [2021-03-25 08:37:17,911 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 298 transitions, 4927 flow [2021-03-25 08:37:17,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 167 places, 298 transitions, 4927 flow [2021-03-25 08:37:17,972 INFO L129 PetriNetUnfolder]: 186/631 cut-off events. [2021-03-25 08:37:17,973 INFO L130 PetriNetUnfolder]: For 12315/12335 co-relation queries the response was YES. [2021-03-25 08:37:17,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5306 conditions, 631 events. 186/631 cut-off events. For 12315/12335 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4656 event pairs, 15 based on Foata normal form. 2/633 useless extension candidates. Maximal degree in co-relation 5205. Up to 173 conditions per place. [2021-03-25 08:37:17,978 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 08:37:18,047 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:37:18,047 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:18,048 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-03-25 08:37:18,048 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 297 transitions, 4915 flow [2021-03-25 08:37:18,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:18,048 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:18,048 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:18,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-03-25 08:37:18,264 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:18,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:18,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1036328379, now seen corresponding path program 1 times [2021-03-25 08:37:18,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:18,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779746660] [2021-03-25 08:37:18,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:18,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:18,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:18,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:18,291 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:18,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:18,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779746660] [2021-03-25 08:37:18,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320084307] [2021-03-25 08:37:18,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:18,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:18,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:18,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:18,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:18,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:18,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:18,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:18,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:18,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:18,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:18,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:37:18,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:18,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:18,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 5 [2021-03-25 08:37:18,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694096989] [2021-03-25 08:37:18,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:37:18,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:18,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:37:18,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:37:18,362 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 46 [2021-03-25 08:37:18,362 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 297 transitions, 4915 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:18,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:18,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 46 [2021-03-25 08:37:18,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:18,564 INFO L129 PetriNetUnfolder]: 186/649 cut-off events. [2021-03-25 08:37:18,564 INFO L130 PetriNetUnfolder]: For 12697/12794 co-relation queries the response was YES. [2021-03-25 08:37:18,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5849 conditions, 649 events. 186/649 cut-off events. For 12697/12794 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4829 event pairs, 15 based on Foata normal form. 15/664 useless extension candidates. Maximal degree in co-relation 5744. Up to 495 conditions per place. [2021-03-25 08:37:18,569 INFO L132 encePairwiseOnDemand]: 34/46 looper letters, 275 selfloop transitions, 22 changer transitions 1/302 dead transitions. [2021-03-25 08:37:18,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 302 transitions, 5595 flow [2021-03-25 08:37:18,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:37:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:37:18,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 99 transitions. [2021-03-25 08:37:18,570 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30745341614906835 [2021-03-25 08:37:18,570 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 99 transitions. [2021-03-25 08:37:18,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 99 transitions. [2021-03-25 08:37:18,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:18,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 99 transitions. [2021-03-25 08:37:18,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:18,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:18,571 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:18,571 INFO L185 Difference]: Start difference. First operand has 166 places, 297 transitions, 4915 flow. Second operand 7 states and 99 transitions. [2021-03-25 08:37:18,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 302 transitions, 5595 flow [2021-03-25 08:37:18,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 302 transitions, 5534 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-25 08:37:18,625 INFO L241 Difference]: Finished difference. Result has 169 places, 299 transitions, 4935 flow [2021-03-25 08:37:18,626 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=4854, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4935, PETRI_PLACES=169, PETRI_TRANSITIONS=299} [2021-03-25 08:37:18,626 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 154 predicate places. [2021-03-25 08:37:18,626 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:18,626 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 299 transitions, 4935 flow [2021-03-25 08:37:18,626 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 299 transitions, 4935 flow [2021-03-25 08:37:18,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 299 transitions, 4935 flow [2021-03-25 08:37:18,694 INFO L129 PetriNetUnfolder]: 186/634 cut-off events. [2021-03-25 08:37:18,694 INFO L130 PetriNetUnfolder]: For 11972/12009 co-relation queries the response was YES. [2021-03-25 08:37:18,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5326 conditions, 634 events. 186/634 cut-off events. For 11972/12009 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4641 event pairs, 15 based on Foata normal form. 3/637 useless extension candidates. Maximal degree in co-relation 5226. Up to 173 conditions per place. [2021-03-25 08:37:18,700 INFO L142 LiptonReduction]: Number of co-enabled transitions 142 [2021-03-25 08:37:18,750 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:18,751 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:18,751 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-25 08:37:18,751 INFO L480 AbstractCegarLoop]: Abstraction has has 168 places, 298 transitions, 4927 flow [2021-03-25 08:37:18,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:18,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:18,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:18,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-03-25 08:37:18,953 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:18,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:18,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1883991134, now seen corresponding path program 1 times [2021-03-25 08:37:18,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:18,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917511031] [2021-03-25 08:37:18,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:18,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:18,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:18,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:18,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:18,981 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:18,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:18,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917511031] [2021-03-25 08:37:18,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411890636] [2021-03-25 08:37:18,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:19,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:19,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:19,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:19,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:19,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:19,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:19,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:19,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:19,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:19,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:19,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:19,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:19,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:37:19,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994261690] [2021-03-25 08:37:19,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:19,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:19,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:19,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:19,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2021-03-25 08:37:19,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 298 transitions, 4927 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:19,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:19,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2021-03-25 08:37:19,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:19,248 INFO L129 PetriNetUnfolder]: 204/710 cut-off events. [2021-03-25 08:37:19,248 INFO L130 PetriNetUnfolder]: For 13725/13820 co-relation queries the response was YES. [2021-03-25 08:37:19,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6480 conditions, 710 events. 204/710 cut-off events. For 13725/13820 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 5361 event pairs, 17 based on Foata normal form. 26/736 useless extension candidates. Maximal degree in co-relation 6331. Up to 522 conditions per place. [2021-03-25 08:37:19,254 INFO L132 encePairwiseOnDemand]: 36/47 looper letters, 295 selfloop transitions, 33 changer transitions 1/333 dead transitions. [2021-03-25 08:37:19,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 333 transitions, 6351 flow [2021-03-25 08:37:19,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2021-03-25 08:37:19,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3262411347517731 [2021-03-25 08:37:19,255 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 92 transitions. [2021-03-25 08:37:19,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 92 transitions. [2021-03-25 08:37:19,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:19,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 92 transitions. [2021-03-25 08:37:19,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:19,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:19,256 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:19,256 INFO L185 Difference]: Start difference. First operand has 168 places, 298 transitions, 4927 flow. Second operand 6 states and 92 transitions. [2021-03-25 08:37:19,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 333 transitions, 6351 flow [2021-03-25 08:37:19,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 333 transitions, 6292 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:19,314 INFO L241 Difference]: Finished difference. Result has 172 places, 320 transitions, 5428 flow [2021-03-25 08:37:19,315 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4868, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5428, PETRI_PLACES=172, PETRI_TRANSITIONS=320} [2021-03-25 08:37:19,315 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 157 predicate places. [2021-03-25 08:37:19,315 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:19,315 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 320 transitions, 5428 flow [2021-03-25 08:37:19,315 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 320 transitions, 5428 flow [2021-03-25 08:37:19,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 172 places, 320 transitions, 5428 flow [2021-03-25 08:37:19,380 INFO L129 PetriNetUnfolder]: 204/693 cut-off events. [2021-03-25 08:37:19,380 INFO L130 PetriNetUnfolder]: For 13915/13952 co-relation queries the response was YES. [2021-03-25 08:37:19,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6032 conditions, 693 events. 204/693 cut-off events. For 13915/13952 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5252 event pairs, 17 based on Foata normal form. 3/696 useless extension candidates. Maximal degree in co-relation 5869. Up to 193 conditions per place. [2021-03-25 08:37:19,386 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-25 08:37:19,473 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:19,473 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:19,474 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 159 [2021-03-25 08:37:19,474 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 319 transitions, 5438 flow [2021-03-25 08:37:19,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:19,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:19,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:19,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:19,674 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:19,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:19,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1093586681, now seen corresponding path program 1 times [2021-03-25 08:37:19,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:19,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502901037] [2021-03-25 08:37:19,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:19,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:19,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:19,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:19,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502901037] [2021-03-25 08:37:19,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808442367] [2021-03-25 08:37:19,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:19,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:19,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:19,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:19,723 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:37:19,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:19,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:19,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:19,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:19,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:19,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:19,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:19,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:19,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:19,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:19,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:19,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:19,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:19,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:19,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:19,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:19,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:19,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:19,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:19,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:19,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:19,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:19,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:19,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:19,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:19,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:19,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-03-25 08:37:19,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591474450] [2021-03-25 08:37:19,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:37:19,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:19,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:37:19,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:37:19,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2021-03-25 08:37:19,759 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 319 transitions, 5438 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:19,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:19,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2021-03-25 08:37:19,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:19,946 INFO L129 PetriNetUnfolder]: 203/684 cut-off events. [2021-03-25 08:37:19,947 INFO L130 PetriNetUnfolder]: For 13737/13772 co-relation queries the response was YES. [2021-03-25 08:37:19,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6540 conditions, 684 events. 203/684 cut-off events. For 13737/13772 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5121 event pairs, 0 based on Foata normal form. 11/695 useless extension candidates. Maximal degree in co-relation 6368. Up to 292 conditions per place. [2021-03-25 08:37:19,952 INFO L132 encePairwiseOnDemand]: 37/49 looper letters, 273 selfloop transitions, 44 changer transitions 3/324 dead transitions. [2021-03-25 08:37:19,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 324 transitions, 6194 flow [2021-03-25 08:37:19,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:19,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 84 transitions. [2021-03-25 08:37:19,953 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2021-03-25 08:37:19,954 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 84 transitions. [2021-03-25 08:37:19,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 84 transitions. [2021-03-25 08:37:19,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:19,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 84 transitions. [2021-03-25 08:37:19,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:19,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:19,955 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:19,955 INFO L185 Difference]: Start difference. First operand has 171 places, 319 transitions, 5438 flow. Second operand 6 states and 84 transitions. [2021-03-25 08:37:19,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 324 transitions, 6194 flow [2021-03-25 08:37:20,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 324 transitions, 6004 flow, removed 90 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:20,041 INFO L241 Difference]: Finished difference. Result has 174 places, 316 transitions, 5288 flow [2021-03-25 08:37:20,041 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=5242, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5288, PETRI_PLACES=174, PETRI_TRANSITIONS=316} [2021-03-25 08:37:20,042 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 159 predicate places. [2021-03-25 08:37:20,042 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:20,042 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 316 transitions, 5288 flow [2021-03-25 08:37:20,042 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 316 transitions, 5288 flow [2021-03-25 08:37:20,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 316 transitions, 5288 flow [2021-03-25 08:37:20,134 INFO L129 PetriNetUnfolder]: 203/690 cut-off events. [2021-03-25 08:37:20,134 INFO L130 PetriNetUnfolder]: For 14057/14094 co-relation queries the response was YES. [2021-03-25 08:37:20,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5877 conditions, 690 events. 203/690 cut-off events. For 14057/14094 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5125 event pairs, 17 based on Foata normal form. 3/693 useless extension candidates. Maximal degree in co-relation 5729. Up to 190 conditions per place. [2021-03-25 08:37:20,144 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-25 08:37:20,222 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:20,222 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:20,222 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 180 [2021-03-25 08:37:20,222 INFO L480 AbstractCegarLoop]: Abstraction has has 169 places, 316 transitions, 5307 flow [2021-03-25 08:37:20,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:20,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:20,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:20,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-03-25 08:37:20,436 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:20,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:20,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1354091966, now seen corresponding path program 1 times [2021-03-25 08:37:20,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:20,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909381028] [2021-03-25 08:37:20,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:20,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:20,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:20,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:20,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:20,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909381028] [2021-03-25 08:37:20,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399873578] [2021-03-25 08:37:20,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:20,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:37:20,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:20,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:20,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:20,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:20,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:20,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:20,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:20,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:20,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:20,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:20,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:20,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:20,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:20,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:20,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:20,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:20,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:20,482 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:20,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:20,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:20,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:20,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:20,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:20,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:20,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:20,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:20,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:20,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:20,493 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:37:20,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:20,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:20,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:20,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:20,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:37:20,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383407673] [2021-03-25 08:37:20,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:20,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:20,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:20,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:20,501 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 50 [2021-03-25 08:37:20,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 316 transitions, 5307 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:20,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:20,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 50 [2021-03-25 08:37:20,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:20,680 INFO L129 PetriNetUnfolder]: 204/684 cut-off events. [2021-03-25 08:37:20,680 INFO L130 PetriNetUnfolder]: For 14477/14639 co-relation queries the response was YES. [2021-03-25 08:37:20,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6462 conditions, 684 events. 204/684 cut-off events. For 14477/14639 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5057 event pairs, 17 based on Foata normal form. 18/702 useless extension candidates. Maximal degree in co-relation 6305. Up to 529 conditions per place. [2021-03-25 08:37:20,686 INFO L132 encePairwiseOnDemand]: 38/50 looper letters, 282 selfloop transitions, 37 changer transitions 1/324 dead transitions. [2021-03-25 08:37:20,686 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 324 transitions, 6076 flow [2021-03-25 08:37:20,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:37:20,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:37:20,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 99 transitions. [2021-03-25 08:37:20,691 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28285714285714286 [2021-03-25 08:37:20,691 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 99 transitions. [2021-03-25 08:37:20,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 99 transitions. [2021-03-25 08:37:20,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:20,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 99 transitions. [2021-03-25 08:37:20,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:20,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 50.0) internal successors, (400), 8 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:20,692 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 50.0) internal successors, (400), 8 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:20,692 INFO L185 Difference]: Start difference. First operand has 169 places, 316 transitions, 5307 flow. Second operand 7 states and 99 transitions. [2021-03-25 08:37:20,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 324 transitions, 6076 flow [2021-03-25 08:37:20,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 324 transitions, 6006 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:20,782 INFO L241 Difference]: Finished difference. Result has 173 places, 320 transitions, 5422 flow [2021-03-25 08:37:20,782 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=5222, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5422, PETRI_PLACES=173, PETRI_TRANSITIONS=320} [2021-03-25 08:37:20,782 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 158 predicate places. [2021-03-25 08:37:20,782 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:20,782 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 320 transitions, 5422 flow [2021-03-25 08:37:20,782 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 320 transitions, 5422 flow [2021-03-25 08:37:20,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 172 places, 320 transitions, 5422 flow [2021-03-25 08:37:20,875 INFO L129 PetriNetUnfolder]: 204/683 cut-off events. [2021-03-25 08:37:20,875 INFO L130 PetriNetUnfolder]: For 13312/13399 co-relation queries the response was YES. [2021-03-25 08:37:20,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5903 conditions, 683 events. 204/683 cut-off events. For 13312/13399 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5068 event pairs, 17 based on Foata normal form. 4/687 useless extension candidates. Maximal degree in co-relation 5756. Up to 190 conditions per place. [2021-03-25 08:37:20,885 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-25 08:37:20,976 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:20,976 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:20,976 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 194 [2021-03-25 08:37:20,976 INFO L480 AbstractCegarLoop]: Abstraction has has 172 places, 320 transitions, 5442 flow [2021-03-25 08:37:20,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:20,976 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:20,976 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:21,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:21,177 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:21,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:21,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1988807029, now seen corresponding path program 1 times [2021-03-25 08:37:21,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:21,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985171303] [2021-03-25 08:37:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:21,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:21,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:21,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:21,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:21,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985171303] [2021-03-25 08:37:21,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83063571] [2021-03-25 08:37:21,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:21,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:21,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:21,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:21,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:21,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:21,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:21,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:21,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:21,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:21,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:21,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:21,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:21,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:21,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:21,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:21,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:21,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:21,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:21,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:21,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:21,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:21,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:21,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:21,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:21,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:21,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:21,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:21,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:21,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:21,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:21,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:21,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:21,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:21,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:21,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:21,263 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:21,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:21,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:21,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:21,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:21,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:21,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:21,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:21,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:21,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:21,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:21,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:21,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:21,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:21,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:21,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694049344] [2021-03-25 08:37:21,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:21,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:21,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:21,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:21,273 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2021-03-25 08:37:21,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 320 transitions, 5442 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:21,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:21,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2021-03-25 08:37:21,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:21,542 INFO L129 PetriNetUnfolder]: 206/703 cut-off events. [2021-03-25 08:37:21,542 INFO L130 PetriNetUnfolder]: For 13328/13336 co-relation queries the response was YES. [2021-03-25 08:37:21,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6553 conditions, 703 events. 206/703 cut-off events. For 13328/13336 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5263 event pairs, 17 based on Foata normal form. 9/712 useless extension candidates. Maximal degree in co-relation 6396. Up to 542 conditions per place. [2021-03-25 08:37:21,548 INFO L132 encePairwiseOnDemand]: 37/51 looper letters, 298 selfloop transitions, 24 changer transitions 0/326 dead transitions. [2021-03-25 08:37:21,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 326 transitions, 6235 flow [2021-03-25 08:37:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 120 transitions. [2021-03-25 08:37:21,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26143790849673204 [2021-03-25 08:37:21,549 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 120 transitions. [2021-03-25 08:37:21,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 120 transitions. [2021-03-25 08:37:21,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:21,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 120 transitions. [2021-03-25 08:37:21,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:21,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 51.0) internal successors, (510), 10 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:21,550 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 51.0) internal successors, (510), 10 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:21,550 INFO L185 Difference]: Start difference. First operand has 172 places, 320 transitions, 5442 flow. Second operand 9 states and 120 transitions. [2021-03-25 08:37:21,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 326 transitions, 6235 flow [2021-03-25 08:37:21,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 326 transitions, 6153 flow, removed 20 selfloop flow, removed 3 redundant places. [2021-03-25 08:37:21,624 INFO L241 Difference]: Finished difference. Result has 180 places, 324 transitions, 5526 flow [2021-03-25 08:37:21,624 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=5360, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5526, PETRI_PLACES=180, PETRI_TRANSITIONS=324} [2021-03-25 08:37:21,624 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 165 predicate places. [2021-03-25 08:37:21,624 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:21,624 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 324 transitions, 5526 flow [2021-03-25 08:37:21,624 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 324 transitions, 5526 flow [2021-03-25 08:37:21,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 180 places, 324 transitions, 5526 flow [2021-03-25 08:37:21,719 INFO L129 PetriNetUnfolder]: 206/686 cut-off events. [2021-03-25 08:37:21,719 INFO L130 PetriNetUnfolder]: For 14442/14523 co-relation queries the response was YES. [2021-03-25 08:37:21,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6028 conditions, 686 events. 206/686 cut-off events. For 14442/14523 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5065 event pairs, 17 based on Foata normal form. 3/689 useless extension candidates. Maximal degree in co-relation 5915. Up to 191 conditions per place. [2021-03-25 08:37:21,729 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-25 08:37:21,806 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:37:21,806 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:21,806 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-03-25 08:37:21,808 INFO L480 AbstractCegarLoop]: Abstraction has has 179 places, 323 transitions, 5514 flow [2021-03-25 08:37:21,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:21,808 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:21,808 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:22,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-03-25 08:37:22,024 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:22,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:22,024 INFO L82 PathProgramCache]: Analyzing trace with hash 861256029, now seen corresponding path program 10 times [2021-03-25 08:37:22,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:22,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404253776] [2021-03-25 08:37:22,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:22,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:22,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:22,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:22,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:22,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404253776] [2021-03-25 08:37:22,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110915488] [2021-03-25 08:37:22,045 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:22,063 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-25 08:37:22,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:22,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:22,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:22,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:22,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:22,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:22,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:22,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:22,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:22,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:22,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:22,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:22,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:22,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:22,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:22,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:22,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:22,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:22,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:22,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:22,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:22,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:22,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:22,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:22,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:22,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:22,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:22,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:22,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:22,106 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-03-25 08:37:22,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:22,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:22,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:37:22,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:37:22,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:22,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:22,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:22,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:22,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:22,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:22,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:22,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:22,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:22,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:22,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45492216] [2021-03-25 08:37:22,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:22,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:22,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:22,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:22,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2021-03-25 08:37:22,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 323 transitions, 5514 flow. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:22,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:22,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2021-03-25 08:37:22,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:22,388 INFO L129 PetriNetUnfolder]: 207/699 cut-off events. [2021-03-25 08:37:22,388 INFO L130 PetriNetUnfolder]: For 14394/14460 co-relation queries the response was YES. [2021-03-25 08:37:22,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6596 conditions, 699 events. 207/699 cut-off events. For 14394/14460 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5203 event pairs, 17 based on Foata normal form. 14/713 useless extension candidates. Maximal degree in co-relation 6479. Up to 533 conditions per place. [2021-03-25 08:37:22,395 INFO L132 encePairwiseOnDemand]: 38/52 looper letters, 289 selfloop transitions, 34 changer transitions 0/327 dead transitions. [2021-03-25 08:37:22,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 327 transitions, 6257 flow [2021-03-25 08:37:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 08:37:22,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 08:37:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 145 transitions. [2021-03-25 08:37:22,396 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2534965034965035 [2021-03-25 08:37:22,396 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 145 transitions. [2021-03-25 08:37:22,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 145 transitions. [2021-03-25 08:37:22,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:22,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 145 transitions. [2021-03-25 08:37:22,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:22,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 52.0) internal successors, (624), 12 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:22,398 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 52.0) internal successors, (624), 12 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:22,398 INFO L185 Difference]: Start difference. First operand has 179 places, 323 transitions, 5514 flow. Second operand 11 states and 145 transitions. [2021-03-25 08:37:22,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 327 transitions, 6257 flow [2021-03-25 08:37:22,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 327 transitions, 6199 flow, removed 19 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:22,459 INFO L241 Difference]: Finished difference. Result has 188 places, 324 transitions, 5569 flow [2021-03-25 08:37:22,459 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=5428, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5569, PETRI_PLACES=188, PETRI_TRANSITIONS=324} [2021-03-25 08:37:22,459 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 173 predicate places. [2021-03-25 08:37:22,459 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:22,459 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 324 transitions, 5569 flow [2021-03-25 08:37:22,459 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 324 transitions, 5569 flow [2021-03-25 08:37:22,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 188 places, 324 transitions, 5569 flow [2021-03-25 08:37:22,530 INFO L129 PetriNetUnfolder]: 207/685 cut-off events. [2021-03-25 08:37:22,530 INFO L130 PetriNetUnfolder]: For 14035/14124 co-relation queries the response was YES. [2021-03-25 08:37:22,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6000 conditions, 685 events. 207/685 cut-off events. For 14035/14124 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5021 event pairs, 17 based on Foata normal form. 3/688 useless extension candidates. Maximal degree in co-relation 5887. Up to 189 conditions per place. [2021-03-25 08:37:22,536 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-25 08:37:22,548 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:22,548 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:22,548 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-25 08:37:22,548 INFO L480 AbstractCegarLoop]: Abstraction has has 188 places, 324 transitions, 5569 flow [2021-03-25 08:37:22,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:22,549 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:22,549 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:22,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-03-25 08:37:22,749 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:22,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1994348155, now seen corresponding path program 1 times [2021-03-25 08:37:22,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:22,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930160523] [2021-03-25 08:37:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:22,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:22,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,773 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:22,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:22,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:22,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930160523] [2021-03-25 08:37:22,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632890885] [2021-03-25 08:37:22,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:22,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:22,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:22,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:22,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:22,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:22,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:22,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:22,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:22,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:22,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:22,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:22,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:22,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:22,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:22,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:22,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:37:22,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828398247] [2021-03-25 08:37:22,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:22,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:22,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:22,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:22,841 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2021-03-25 08:37:22,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 324 transitions, 5569 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:22,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:22,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2021-03-25 08:37:22,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:23,049 INFO L129 PetriNetUnfolder]: 225/761 cut-off events. [2021-03-25 08:37:23,050 INFO L130 PetriNetUnfolder]: For 15606/15664 co-relation queries the response was YES. [2021-03-25 08:37:23,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7240 conditions, 761 events. 225/761 cut-off events. For 15606/15664 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5773 event pairs, 19 based on Foata normal form. 23/784 useless extension candidates. Maximal degree in co-relation 7055. Up to 566 conditions per place. [2021-03-25 08:37:23,058 INFO L132 encePairwiseOnDemand]: 39/52 looper letters, 319 selfloop transitions, 35 changer transitions 1/359 dead transitions. [2021-03-25 08:37:23,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 359 transitions, 7105 flow [2021-03-25 08:37:23,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:23,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 93 transitions. [2021-03-25 08:37:23,060 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2980769230769231 [2021-03-25 08:37:23,060 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 93 transitions. [2021-03-25 08:37:23,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 93 transitions. [2021-03-25 08:37:23,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:23,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 93 transitions. [2021-03-25 08:37:23,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:23,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:23,061 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:23,061 INFO L185 Difference]: Start difference. First operand has 188 places, 324 transitions, 5569 flow. Second operand 6 states and 93 transitions. [2021-03-25 08:37:23,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 359 transitions, 7105 flow [2021-03-25 08:37:23,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 359 transitions, 7006 flow, removed 18 selfloop flow, removed 8 redundant places. [2021-03-25 08:37:23,136 INFO L241 Difference]: Finished difference. Result has 188 places, 346 transitions, 6082 flow [2021-03-25 08:37:23,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=5470, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6082, PETRI_PLACES=188, PETRI_TRANSITIONS=346} [2021-03-25 08:37:23,136 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 173 predicate places. [2021-03-25 08:37:23,136 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:23,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 346 transitions, 6082 flow [2021-03-25 08:37:23,137 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 346 transitions, 6082 flow [2021-03-25 08:37:23,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 188 places, 346 transitions, 6082 flow [2021-03-25 08:37:23,211 INFO L129 PetriNetUnfolder]: 225/745 cut-off events. [2021-03-25 08:37:23,211 INFO L130 PetriNetUnfolder]: For 15833/15922 co-relation queries the response was YES. [2021-03-25 08:37:23,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6729 conditions, 745 events. 225/745 cut-off events. For 15833/15922 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5594 event pairs, 19 based on Foata normal form. 3/748 useless extension candidates. Maximal degree in co-relation 6559. Up to 205 conditions per place. [2021-03-25 08:37:23,219 INFO L142 LiptonReduction]: Number of co-enabled transitions 182 [2021-03-25 08:37:23,341 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:23,341 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:23,341 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 205 [2021-03-25 08:37:23,342 INFO L480 AbstractCegarLoop]: Abstraction has has 187 places, 345 transitions, 6094 flow [2021-03-25 08:37:23,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:23,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:23,342 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:23,542 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-03-25 08:37:23,542 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:23,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:23,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1694475157, now seen corresponding path program 1 times [2021-03-25 08:37:23,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:23,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441775592] [2021-03-25 08:37:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:23,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:23,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:23,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:23,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:23,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:23,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:23,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441775592] [2021-03-25 08:37:23,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510587116] [2021-03-25 08:37:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:23,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:37:23,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:23,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:23,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:23,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:23,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:23,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:23,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:23,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:23,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:23,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:23,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:23,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:23,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:23,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:23,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:23,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:23,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:23,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:23,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:23,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:23,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:23,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:23,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:23,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:23,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:23,619 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:23,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:23,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:23,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:23,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:23,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:23,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:23,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:23,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:23,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:23,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:23,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:23,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:23,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:23,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:23,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:23,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:23,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:23,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:23,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:23,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:23,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:23,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:23,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:23,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:23,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:23,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:23,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:23,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 08:37:23,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637856247] [2021-03-25 08:37:23,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:37:23,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:23,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:37:23,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:37:23,653 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 54 [2021-03-25 08:37:23,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 345 transitions, 6094 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:23,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:23,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 54 [2021-03-25 08:37:23,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:24,092 INFO L129 PetriNetUnfolder]: 276/935 cut-off events. [2021-03-25 08:37:24,092 INFO L130 PetriNetUnfolder]: For 20630/20662 co-relation queries the response was YES. [2021-03-25 08:37:24,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9219 conditions, 935 events. 276/935 cut-off events. For 20630/20662 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 7647 event pairs, 0 based on Foata normal form. 12/947 useless extension candidates. Maximal degree in co-relation 9037. Up to 265 conditions per place. [2021-03-25 08:37:24,101 INFO L132 encePairwiseOnDemand]: 38/54 looper letters, 193 selfloop transitions, 256 changer transitions 1/454 dead transitions. [2021-03-25 08:37:24,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 454 transitions, 9152 flow [2021-03-25 08:37:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-25 08:37:24,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-25 08:37:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 259 transitions. [2021-03-25 08:37:24,102 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23981481481481481 [2021-03-25 08:37:24,102 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 259 transitions. [2021-03-25 08:37:24,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 259 transitions. [2021-03-25 08:37:24,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:24,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 259 transitions. [2021-03-25 08:37:24,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 12.95) internal successors, (259), 20 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:24,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 54.0) internal successors, (1134), 21 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:24,104 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 54.0) internal successors, (1134), 21 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:24,104 INFO L185 Difference]: Start difference. First operand has 187 places, 345 transitions, 6094 flow. Second operand 20 states and 259 transitions. [2021-03-25 08:37:24,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 454 transitions, 9152 flow [2021-03-25 08:37:24,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 454 transitions, 8932 flow, removed 104 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:24,214 INFO L241 Difference]: Finished difference. Result has 210 places, 425 transitions, 8402 flow [2021-03-25 08:37:24,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=5846, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8402, PETRI_PLACES=210, PETRI_TRANSITIONS=425} [2021-03-25 08:37:24,214 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 195 predicate places. [2021-03-25 08:37:24,214 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:24,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 425 transitions, 8402 flow [2021-03-25 08:37:24,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 425 transitions, 8402 flow [2021-03-25 08:37:24,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 425 transitions, 8402 flow [2021-03-25 08:37:24,324 INFO L129 PetriNetUnfolder]: 276/949 cut-off events. [2021-03-25 08:37:24,325 INFO L130 PetriNetUnfolder]: For 22916/22940 co-relation queries the response was YES. [2021-03-25 08:37:24,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9121 conditions, 949 events. 276/949 cut-off events. For 22916/22940 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 7825 event pairs, 20 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 8928. Up to 265 conditions per place. [2021-03-25 08:37:24,336 INFO L142 LiptonReduction]: Number of co-enabled transitions 206 [2021-03-25 08:37:24,568 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:24,568 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 08:37:24,568 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 354 [2021-03-25 08:37:24,569 INFO L480 AbstractCegarLoop]: Abstraction has has 210 places, 425 transitions, 8445 flow [2021-03-25 08:37:24,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:24,569 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:24,569 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:24,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-03-25 08:37:24,788 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:24,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1547010432, now seen corresponding path program 1 times [2021-03-25 08:37:24,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:24,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631167836] [2021-03-25 08:37:24,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:24,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:24,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:24,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:24,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:24,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631167836] [2021-03-25 08:37:24,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502829033] [2021-03-25 08:37:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:24,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:24,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:24,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:24,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:24,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:24,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:24,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:24,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:24,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:24,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:24,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:24,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:24,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:24,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:24,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:24,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:24,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:24,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:24,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:24,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:24,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:24,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:24,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:24,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:24,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:24,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:24,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:24,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:24,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:24,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:24,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:24,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:24,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:24,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:24,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:24,879 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:24,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:24,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:24,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:24,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:24,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:24,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:24,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:24,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:24,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:24,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:24,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:24,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:24,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:24,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:24,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:24,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653335831] [2021-03-25 08:37:24,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:24,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:24,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:24,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:24,889 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 59 [2021-03-25 08:37:24,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 425 transitions, 8445 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:24,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:24,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 59 [2021-03-25 08:37:24,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:25,235 INFO L129 PetriNetUnfolder]: 278/951 cut-off events. [2021-03-25 08:37:25,235 INFO L130 PetriNetUnfolder]: For 23583/23682 co-relation queries the response was YES. [2021-03-25 08:37:25,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9991 conditions, 951 events. 278/951 cut-off events. For 23583/23682 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7753 event pairs, 20 based on Foata normal form. 12/962 useless extension candidates. Maximal degree in co-relation 9801. Up to 742 conditions per place. [2021-03-25 08:37:25,244 INFO L132 encePairwiseOnDemand]: 41/59 looper letters, 399 selfloop transitions, 29 changer transitions 0/432 dead transitions. [2021-03-25 08:37:25,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 432 transitions, 9492 flow [2021-03-25 08:37:25,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:25,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 124 transitions. [2021-03-25 08:37:25,245 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2335216572504708 [2021-03-25 08:37:25,245 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 124 transitions. [2021-03-25 08:37:25,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 124 transitions. [2021-03-25 08:37:25,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:25,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 124 transitions. [2021-03-25 08:37:25,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:25,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 59.0) internal successors, (590), 10 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:25,246 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 59.0) internal successors, (590), 10 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:25,246 INFO L185 Difference]: Start difference. First operand has 210 places, 425 transitions, 8445 flow. Second operand 9 states and 124 transitions. [2021-03-25 08:37:25,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 432 transitions, 9492 flow [2021-03-25 08:37:25,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 432 transitions, 8928 flow, removed 249 selfloop flow, removed 5 redundant places. [2021-03-25 08:37:25,370 INFO L241 Difference]: Finished difference. Result has 217 places, 430 transitions, 8098 flow [2021-03-25 08:37:25,370 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=7887, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8098, PETRI_PLACES=217, PETRI_TRANSITIONS=430} [2021-03-25 08:37:25,370 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 202 predicate places. [2021-03-25 08:37:25,370 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:25,370 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 430 transitions, 8098 flow [2021-03-25 08:37:25,370 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 430 transitions, 8098 flow [2021-03-25 08:37:25,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 430 transitions, 8098 flow [2021-03-25 08:37:25,481 INFO L129 PetriNetUnfolder]: 278/941 cut-off events. [2021-03-25 08:37:25,482 INFO L130 PetriNetUnfolder]: For 18369/18436 co-relation queries the response was YES. [2021-03-25 08:37:25,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8439 conditions, 941 events. 278/941 cut-off events. For 18369/18436 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 7692 event pairs, 20 based on Foata normal form. 0/939 useless extension candidates. Maximal degree in co-relation 8309. Up to 251 conditions per place. [2021-03-25 08:37:25,495 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-25 08:37:25,619 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:37:25,619 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:25,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 250 [2021-03-25 08:37:25,620 INFO L480 AbstractCegarLoop]: Abstraction has has 216 places, 429 transitions, 8104 flow [2021-03-25 08:37:25,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:25,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:25,620 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:25,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-03-25 08:37:25,824 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:25,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:25,824 INFO L82 PathProgramCache]: Analyzing trace with hash 978910807, now seen corresponding path program 1 times [2021-03-25 08:37:25,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:25,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372510352] [2021-03-25 08:37:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:25,834 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:37:25,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:25,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:25,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372510352] [2021-03-25 08:37:25,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104404282] [2021-03-25 08:37:25,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:25,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:37:25,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:25,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:25,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:25,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:25,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:25,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:25,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:25,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:25,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:25,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:25,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:25,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:37:25,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:25,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:25,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:37:25,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:25,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,897 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-25 08:37:25,897 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 08:37:25,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:25,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:25,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:25,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:25,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:25,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:25,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:25,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:25,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:25,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:25,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:25,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:37:25,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:25,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:25,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:37:25,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:25,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:25,957 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 08:37:25,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:25,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:25,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 08:37:25,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 08:37:25,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:25,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:25,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:25,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:25,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:25,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:25,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:25,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:25,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:25,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:25,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 08:37:25,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986202124] [2021-03-25 08:37:25,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 08:37:25,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:25,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 08:37:25,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-25 08:37:25,980 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 61 [2021-03-25 08:37:25,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 429 transitions, 8104 flow. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:25,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:25,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 61 [2021-03-25 08:37:25,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:26,310 INFO L129 PetriNetUnfolder]: 296/991 cut-off events. [2021-03-25 08:37:26,310 INFO L130 PetriNetUnfolder]: For 20047/20138 co-relation queries the response was YES. [2021-03-25 08:37:26,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9703 conditions, 991 events. 296/991 cut-off events. For 20047/20138 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8063 event pairs, 20 based on Foata normal form. 23/1012 useless extension candidates. Maximal degree in co-relation 9569. Up to 741 conditions per place. [2021-03-25 08:37:26,318 INFO L132 encePairwiseOnDemand]: 44/61 looper letters, 415 selfloop transitions, 49 changer transitions 0/468 dead transitions. [2021-03-25 08:37:26,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 468 transitions, 9910 flow [2021-03-25 08:37:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:37:26,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:37:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 119 transitions. [2021-03-25 08:37:26,319 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24385245901639344 [2021-03-25 08:37:26,319 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 119 transitions. [2021-03-25 08:37:26,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 119 transitions. [2021-03-25 08:37:26,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:26,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 119 transitions. [2021-03-25 08:37:26,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:26,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 61.0) internal successors, (549), 9 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:26,320 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 61.0) internal successors, (549), 9 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:26,320 INFO L185 Difference]: Start difference. First operand has 216 places, 429 transitions, 8104 flow. Second operand 8 states and 119 transitions. [2021-03-25 08:37:26,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 468 transitions, 9910 flow [2021-03-25 08:37:26,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 468 transitions, 9823 flow, removed 23 selfloop flow, removed 5 redundant places. [2021-03-25 08:37:26,426 INFO L241 Difference]: Finished difference. Result has 221 places, 449 transitions, 8593 flow [2021-03-25 08:37:26,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=8019, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8593, PETRI_PLACES=221, PETRI_TRANSITIONS=449} [2021-03-25 08:37:26,427 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 206 predicate places. [2021-03-25 08:37:26,427 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:26,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 221 places, 449 transitions, 8593 flow [2021-03-25 08:37:26,427 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 221 places, 449 transitions, 8593 flow [2021-03-25 08:37:26,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 449 transitions, 8593 flow [2021-03-25 08:37:26,536 INFO L129 PetriNetUnfolder]: 296/981 cut-off events. [2021-03-25 08:37:26,536 INFO L130 PetriNetUnfolder]: For 19507/19559 co-relation queries the response was YES. [2021-03-25 08:37:26,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8987 conditions, 981 events. 296/981 cut-off events. For 19507/19559 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8025 event pairs, 20 based on Foata normal form. 3/981 useless extension candidates. Maximal degree in co-relation 8858. Up to 267 conditions per place. [2021-03-25 08:37:26,547 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-25 08:37:26,568 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:26,569 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:26,569 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 142 [2021-03-25 08:37:26,569 INFO L480 AbstractCegarLoop]: Abstraction has has 221 places, 449 transitions, 8593 flow [2021-03-25 08:37:26,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:26,569 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:26,569 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:26,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-03-25 08:37:26,770 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:26,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1554398600, now seen corresponding path program 1 times [2021-03-25 08:37:26,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:26,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313847974] [2021-03-25 08:37:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:26,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:26,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,793 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:26,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:26,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313847974] [2021-03-25 08:37:26,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010611536] [2021-03-25 08:37:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:26,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:26,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:26,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:26,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:26,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:26,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:26,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:26,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:26,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:26,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:26,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:26,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:26,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:26,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:26,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:26,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:26,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:26,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:26,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:26,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:26,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:26,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:26,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:37:26,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036364042] [2021-03-25 08:37:26,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:26,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:26,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:26,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:26,871 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 61 [2021-03-25 08:37:26,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 449 transitions, 8593 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:26,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:26,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 61 [2021-03-25 08:37:26,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:27,219 INFO L129 PetriNetUnfolder]: 314/1053 cut-off events. [2021-03-25 08:37:27,219 INFO L130 PetriNetUnfolder]: For 21320/21350 co-relation queries the response was YES. [2021-03-25 08:37:27,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10520 conditions, 1053 events. 314/1053 cut-off events. For 21320/21350 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 8680 event pairs, 22 based on Foata normal form. 9/1059 useless extension candidates. Maximal degree in co-relation 10325. Up to 808 conditions per place. [2021-03-25 08:37:27,229 INFO L132 encePairwiseOnDemand]: 43/61 looper letters, 439 selfloop transitions, 40 changer transitions 1/484 dead transitions. [2021-03-25 08:37:27,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 484 transitions, 10453 flow [2021-03-25 08:37:27,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2021-03-25 08:37:27,230 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2677595628415301 [2021-03-25 08:37:27,230 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 98 transitions. [2021-03-25 08:37:27,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 98 transitions. [2021-03-25 08:37:27,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:27,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 98 transitions. [2021-03-25 08:37:27,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:27,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 61.0) internal successors, (427), 7 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:27,231 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 61.0) internal successors, (427), 7 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:27,232 INFO L185 Difference]: Start difference. First operand has 221 places, 449 transitions, 8593 flow. Second operand 6 states and 98 transitions. [2021-03-25 08:37:27,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 484 transitions, 10453 flow [2021-03-25 08:37:27,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 484 transitions, 10354 flow, removed 25 selfloop flow, removed 3 redundant places. [2021-03-25 08:37:27,351 INFO L241 Difference]: Finished difference. Result has 226 places, 471 transitions, 9168 flow [2021-03-25 08:37:27,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=8494, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9168, PETRI_PLACES=226, PETRI_TRANSITIONS=471} [2021-03-25 08:37:27,351 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 211 predicate places. [2021-03-25 08:37:27,351 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:27,351 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 471 transitions, 9168 flow [2021-03-25 08:37:27,351 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 471 transitions, 9168 flow [2021-03-25 08:37:27,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 226 places, 471 transitions, 9168 flow [2021-03-25 08:37:27,479 INFO L129 PetriNetUnfolder]: 314/1043 cut-off events. [2021-03-25 08:37:27,480 INFO L130 PetriNetUnfolder]: For 21638/21638 co-relation queries the response was YES. [2021-03-25 08:37:27,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9805 conditions, 1043 events. 314/1043 cut-off events. For 21638/21638 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 8659 event pairs, 22 based on Foata normal form. 0/1040 useless extension candidates. Maximal degree in co-relation 9627. Up to 283 conditions per place. [2021-03-25 08:37:27,492 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 08:37:27,607 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:27,607 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:27,607 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 256 [2021-03-25 08:37:27,608 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 470 transitions, 9182 flow [2021-03-25 08:37:27,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:27,608 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:27,608 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:27,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-03-25 08:37:27,809 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:27,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:27,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1151908509, now seen corresponding path program 2 times [2021-03-25 08:37:27,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:27,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556668117] [2021-03-25 08:37:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:27,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:27,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:27,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:27,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:27,845 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:27,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:27,849 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:27,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556668117] [2021-03-25 08:37:27,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901075111] [2021-03-25 08:37:27,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:27,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:37:27,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:27,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:37:27,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:27,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:27,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:27,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:27,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:27,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:27,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:27,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:27,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:27,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:27,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:27,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:27,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:27,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:27,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:27,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:27,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:27,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:27,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:27,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:27,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:27,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:27,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:27,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:27,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:27,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:37:27,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:37:27,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:37:27,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:37:27,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:27,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:37:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:27,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:27,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-03-25 08:37:27,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961958264] [2021-03-25 08:37:27,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:37:27,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:27,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:37:27,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:37:27,940 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 63 [2021-03-25 08:37:27,940 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 470 transitions, 9182 flow. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:27,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:27,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 63 [2021-03-25 08:37:27,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:28,377 INFO L129 PetriNetUnfolder]: 346/1183 cut-off events. [2021-03-25 08:37:28,377 INFO L130 PetriNetUnfolder]: For 26423/26564 co-relation queries the response was YES. [2021-03-25 08:37:28,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12116 conditions, 1183 events. 346/1183 cut-off events. For 26423/26564 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 10170 event pairs, 26 based on Foata normal form. 35/1215 useless extension candidates. Maximal degree in co-relation 11926. Up to 734 conditions per place. [2021-03-25 08:37:28,387 INFO L132 encePairwiseOnDemand]: 44/63 looper letters, 434 selfloop transitions, 115 changer transitions 2/555 dead transitions. [2021-03-25 08:37:28,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 555 transitions, 12428 flow [2021-03-25 08:37:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 149 transitions. [2021-03-25 08:37:28,389 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26278659611992944 [2021-03-25 08:37:28,389 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 149 transitions. [2021-03-25 08:37:28,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 149 transitions. [2021-03-25 08:37:28,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:28,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 149 transitions. [2021-03-25 08:37:28,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:28,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 63.0) internal successors, (630), 10 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:28,390 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 63.0) internal successors, (630), 10 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:28,390 INFO L185 Difference]: Start difference. First operand has 225 places, 470 transitions, 9182 flow. Second operand 9 states and 149 transitions. [2021-03-25 08:37:28,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 555 transitions, 12428 flow [2021-03-25 08:37:28,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 555 transitions, 12159 flow, removed 126 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:28,524 INFO L241 Difference]: Finished difference. Result has 234 places, 511 transitions, 10257 flow [2021-03-25 08:37:28,524 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=8923, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10257, PETRI_PLACES=234, PETRI_TRANSITIONS=511} [2021-03-25 08:37:28,524 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 219 predicate places. [2021-03-25 08:37:28,524 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:28,524 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 511 transitions, 10257 flow [2021-03-25 08:37:28,525 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 511 transitions, 10257 flow [2021-03-25 08:37:28,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 234 places, 511 transitions, 10257 flow [2021-03-25 08:37:28,676 INFO L129 PetriNetUnfolder]: 346/1174 cut-off events. [2021-03-25 08:37:28,676 INFO L130 PetriNetUnfolder]: For 26725/26826 co-relation queries the response was YES. [2021-03-25 08:37:28,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11251 conditions, 1174 events. 346/1174 cut-off events. For 26725/26826 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 10145 event pairs, 26 based on Foata normal form. 4/1175 useless extension candidates. Maximal degree in co-relation 11070. Up to 316 conditions per place. [2021-03-25 08:37:28,691 INFO L142 LiptonReduction]: Number of co-enabled transitions 264 [2021-03-25 08:37:28,719 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:28,719 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:28,719 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 195 [2021-03-25 08:37:28,719 INFO L480 AbstractCegarLoop]: Abstraction has has 234 places, 511 transitions, 10257 flow [2021-03-25 08:37:28,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:28,719 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:28,719 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:28,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-03-25 08:37:28,920 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:28,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:28,920 INFO L82 PathProgramCache]: Analyzing trace with hash 725209804, now seen corresponding path program 1 times [2021-03-25 08:37:28,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:28,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282317931] [2021-03-25 08:37:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:28,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:28,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:28,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:28,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:28,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282317931] [2021-03-25 08:37:28,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871136684] [2021-03-25 08:37:28,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:28,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:37:28,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:28,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:28,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:28,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:28,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:28,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:28,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:28,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:28,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:28,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:28,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:28,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:28,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:28,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:28,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:28,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:28,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:28,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:28,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:28,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:28,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:28,964 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:28,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:28,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:28,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:28,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:28,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:28,967 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:37:28,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:28,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:28,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:28,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:37:28,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487876313] [2021-03-25 08:37:28,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:28,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:28,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:28,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:28,973 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 63 [2021-03-25 08:37:28,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 511 transitions, 10257 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:28,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:28,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 63 [2021-03-25 08:37:28,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:29,381 INFO L129 PetriNetUnfolder]: 349/1206 cut-off events. [2021-03-25 08:37:29,381 INFO L130 PetriNetUnfolder]: For 27019/27293 co-relation queries the response was YES. [2021-03-25 08:37:29,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12403 conditions, 1206 events. 349/1206 cut-off events. For 27019/27293 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10461 event pairs, 26 based on Foata normal form. 17/1220 useless extension candidates. Maximal degree in co-relation 12210. Up to 907 conditions per place. [2021-03-25 08:37:29,391 INFO L132 encePairwiseOnDemand]: 44/63 looper letters, 462 selfloop transitions, 61 changer transitions 1/528 dead transitions. [2021-03-25 08:37:29,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 528 transitions, 11657 flow [2021-03-25 08:37:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:29,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 131 transitions. [2021-03-25 08:37:29,392 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2310405643738977 [2021-03-25 08:37:29,392 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 131 transitions. [2021-03-25 08:37:29,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 131 transitions. [2021-03-25 08:37:29,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:29,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 131 transitions. [2021-03-25 08:37:29,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:29,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 63.0) internal successors, (630), 10 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:29,393 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 63.0) internal successors, (630), 10 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:29,393 INFO L185 Difference]: Start difference. First operand has 234 places, 511 transitions, 10257 flow. Second operand 9 states and 131 transitions. [2021-03-25 08:37:29,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 528 transitions, 11657 flow [2021-03-25 08:37:29,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 528 transitions, 10959 flow, removed 304 selfloop flow, removed 3 redundant places. [2021-03-25 08:37:29,536 INFO L241 Difference]: Finished difference. Result has 242 places, 519 transitions, 9933 flow [2021-03-25 08:37:29,536 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=9543, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9933, PETRI_PLACES=242, PETRI_TRANSITIONS=519} [2021-03-25 08:37:29,536 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 227 predicate places. [2021-03-25 08:37:29,536 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:29,536 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 519 transitions, 9933 flow [2021-03-25 08:37:29,536 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 519 transitions, 9933 flow [2021-03-25 08:37:29,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 519 transitions, 9933 flow [2021-03-25 08:37:29,690 INFO L129 PetriNetUnfolder]: 349/1194 cut-off events. [2021-03-25 08:37:29,690 INFO L130 PetriNetUnfolder]: For 24979/25030 co-relation queries the response was YES. [2021-03-25 08:37:29,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11076 conditions, 1194 events. 349/1194 cut-off events. For 24979/25030 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 10433 event pairs, 26 based on Foata normal form. 3/1194 useless extension candidates. Maximal degree in co-relation 10891. Up to 319 conditions per place. [2021-03-25 08:37:29,710 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-25 08:37:29,844 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:29,844 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 08:37:29,844 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 308 [2021-03-25 08:37:29,844 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 518 transitions, 9959 flow [2021-03-25 08:37:29,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:29,844 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:29,844 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:30,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:30,045 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:30,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:30,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1827789679, now seen corresponding path program 1 times [2021-03-25 08:37:30,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:30,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664725439] [2021-03-25 08:37:30,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:30,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:30,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:30,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:30,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:30,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664725439] [2021-03-25 08:37:30,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148537] [2021-03-25 08:37:30,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:30,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:30,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:30,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:30,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:30,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:30,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:30,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:30,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:30,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:30,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:30,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:30,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:30,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:30,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:30,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:30,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:30,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:30,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:30,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:30,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:30,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:30,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:30,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:30,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:30,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:30,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:30,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:30,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:30,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:30,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:30,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:30,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:30,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:30,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:30,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:30,124 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:30,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:30,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:30,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:30,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:30,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:30,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:30,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:30,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:30,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:30,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:30,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:30,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:30,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:30,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:30,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:30,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471427378] [2021-03-25 08:37:30,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:30,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:30,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:30,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:30,133 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 66 [2021-03-25 08:37:30,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 518 transitions, 9959 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:30,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:30,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 66 [2021-03-25 08:37:30,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:30,578 INFO L129 PetriNetUnfolder]: 351/1208 cut-off events. [2021-03-25 08:37:30,578 INFO L130 PetriNetUnfolder]: For 26195/26380 co-relation queries the response was YES. [2021-03-25 08:37:30,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12141 conditions, 1208 events. 351/1208 cut-off events. For 26195/26380 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10420 event pairs, 26 based on Foata normal form. 19/1224 useless extension candidates. Maximal degree in co-relation 11944. Up to 945 conditions per place. [2021-03-25 08:37:30,590 INFO L132 encePairwiseOnDemand]: 45/66 looper letters, 487 selfloop transitions, 33 changer transitions 0/524 dead transitions. [2021-03-25 08:37:30,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 524 transitions, 11196 flow [2021-03-25 08:37:30,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:30,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 129 transitions. [2021-03-25 08:37:30,591 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21717171717171718 [2021-03-25 08:37:30,592 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 129 transitions. [2021-03-25 08:37:30,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 129 transitions. [2021-03-25 08:37:30,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:30,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 129 transitions. [2021-03-25 08:37:30,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:30,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:30,593 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:30,593 INFO L185 Difference]: Start difference. First operand has 241 places, 518 transitions, 9959 flow. Second operand 9 states and 129 transitions. [2021-03-25 08:37:30,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 524 transitions, 11196 flow [2021-03-25 08:37:30,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 524 transitions, 11078 flow, removed 40 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:30,765 INFO L241 Difference]: Finished difference. Result has 248 places, 522 transitions, 10057 flow [2021-03-25 08:37:30,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=9841, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10057, PETRI_PLACES=248, PETRI_TRANSITIONS=522} [2021-03-25 08:37:30,765 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 233 predicate places. [2021-03-25 08:37:30,765 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:30,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 522 transitions, 10057 flow [2021-03-25 08:37:30,766 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 522 transitions, 10057 flow [2021-03-25 08:37:30,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 248 places, 522 transitions, 10057 flow [2021-03-25 08:37:30,985 INFO L129 PetriNetUnfolder]: 351/1198 cut-off events. [2021-03-25 08:37:30,986 INFO L130 PetriNetUnfolder]: For 26392/26463 co-relation queries the response was YES. [2021-03-25 08:37:30,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11224 conditions, 1198 events. 351/1198 cut-off events. For 26392/26463 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10468 event pairs, 26 based on Foata normal form. 1/1196 useless extension candidates. Maximal degree in co-relation 11076. Up to 322 conditions per place. [2021-03-25 08:37:31,009 INFO L142 LiptonReduction]: Number of co-enabled transitions 266 [2021-03-25 08:37:31,146 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:37:31,146 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:31,146 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 381 [2021-03-25 08:37:31,147 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 521 transitions, 10045 flow [2021-03-25 08:37:31,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:31,148 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:31,148 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:31,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:31,364 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:31,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:31,364 INFO L82 PathProgramCache]: Analyzing trace with hash 2119319679, now seen corresponding path program 1 times [2021-03-25 08:37:31,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:31,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965560098] [2021-03-25 08:37:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:31,373 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:37:31,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:31,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:31,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:31,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965560098] [2021-03-25 08:37:31,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096300692] [2021-03-25 08:37:31,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:31,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:37:31,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:31,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:31,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:31,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:31,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:31,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:31,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:31,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:31,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:31,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:31,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:31,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:37:31,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:31,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:31,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:37:31,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:31,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,447 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-25 08:37:31,448 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 08:37:31,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:31,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:31,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:31,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:31,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:31,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:31,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:31,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:31,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:31,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:31,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:31,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:37:31,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:31,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:31,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:37:31,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:31,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:31,503 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 08:37:31,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:31,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:31,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 08:37:31,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 08:37:31,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:31,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:31,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:31,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:31,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:31,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:31,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:31,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:31,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:31,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:31,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:31,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 08:37:31,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497357776] [2021-03-25 08:37:31,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 08:37:31,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:31,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 08:37:31,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-25 08:37:31,525 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2021-03-25 08:37:31,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 521 transitions, 10045 flow. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:31,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:31,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2021-03-25 08:37:31,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:31,955 INFO L129 PetriNetUnfolder]: 351/1209 cut-off events. [2021-03-25 08:37:31,955 INFO L130 PetriNetUnfolder]: For 27233/27523 co-relation queries the response was YES. [2021-03-25 08:37:31,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12215 conditions, 1209 events. 351/1209 cut-off events. For 27233/27523 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10472 event pairs, 26 based on Foata normal form. 14/1220 useless extension candidates. Maximal degree in co-relation 12063. Up to 895 conditions per place. [2021-03-25 08:37:31,966 INFO L132 encePairwiseOnDemand]: 46/67 looper letters, 481 selfloop transitions, 58 changer transitions 0/543 dead transitions. [2021-03-25 08:37:31,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 543 transitions, 11691 flow [2021-03-25 08:37:31,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:37:31,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:37:31,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 123 transitions. [2021-03-25 08:37:31,967 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2294776119402985 [2021-03-25 08:37:31,967 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 123 transitions. [2021-03-25 08:37:31,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 123 transitions. [2021-03-25 08:37:31,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:31,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 123 transitions. [2021-03-25 08:37:31,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:31,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:31,968 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:31,968 INFO L185 Difference]: Start difference. First operand has 247 places, 521 transitions, 10045 flow. Second operand 8 states and 123 transitions. [2021-03-25 08:37:31,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 543 transitions, 11691 flow [2021-03-25 08:37:32,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 543 transitions, 11598 flow, removed 24 selfloop flow, removed 5 redundant places. [2021-03-25 08:37:32,132 INFO L241 Difference]: Finished difference. Result has 250 places, 524 transitions, 10142 flow [2021-03-25 08:37:32,132 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=9954, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10142, PETRI_PLACES=250, PETRI_TRANSITIONS=524} [2021-03-25 08:37:32,132 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 235 predicate places. [2021-03-25 08:37:32,132 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:32,132 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 250 places, 524 transitions, 10142 flow [2021-03-25 08:37:32,132 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 250 places, 524 transitions, 10142 flow [2021-03-25 08:37:32,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 250 places, 524 transitions, 10142 flow [2021-03-25 08:37:32,292 INFO L129 PetriNetUnfolder]: 351/1199 cut-off events. [2021-03-25 08:37:32,292 INFO L130 PetriNetUnfolder]: For 25933/26000 co-relation queries the response was YES. [2021-03-25 08:37:32,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11244 conditions, 1199 events. 351/1199 cut-off events. For 25933/26000 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 10424 event pairs, 26 based on Foata normal form. 2/1198 useless extension candidates. Maximal degree in co-relation 11098. Up to 320 conditions per place. [2021-03-25 08:37:32,309 INFO L142 LiptonReduction]: Number of co-enabled transitions 264 [2021-03-25 08:37:32,337 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:32,337 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:32,337 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 205 [2021-03-25 08:37:32,338 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 524 transitions, 10142 flow [2021-03-25 08:37:32,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:32,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:32,338 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:32,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-03-25 08:37:32,538 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:32,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:32,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1787430210, now seen corresponding path program 1 times [2021-03-25 08:37:32,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:32,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234815942] [2021-03-25 08:37:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:32,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:32,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,566 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:32,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:32,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234815942] [2021-03-25 08:37:32,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830390015] [2021-03-25 08:37:32,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:32,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:32,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:32,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:32,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:32,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:32,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:32,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:32,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:32,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:32,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:32,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:32,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:32,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:32,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:32,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:32,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:32,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:32,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:32,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:37:32,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072940404] [2021-03-25 08:37:32,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:32,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:32,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:32,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:32,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2021-03-25 08:37:32,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 524 transitions, 10142 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:32,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:32,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2021-03-25 08:37:32,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:33,099 INFO L129 PetriNetUnfolder]: 369/1271 cut-off events. [2021-03-25 08:37:33,100 INFO L130 PetriNetUnfolder]: For 28856/29138 co-relation queries the response was YES. [2021-03-25 08:37:33,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13003 conditions, 1271 events. 369/1271 cut-off events. For 28856/29138 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 11119 event pairs, 28 based on Foata normal form. 19/1287 useless extension candidates. Maximal degree in co-relation 12803. Up to 973 conditions per place. [2021-03-25 08:37:33,111 INFO L132 encePairwiseOnDemand]: 47/67 looper letters, 512 selfloop transitions, 42 changer transitions 1/559 dead transitions. [2021-03-25 08:37:33,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 559 transitions, 12250 flow [2021-03-25 08:37:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2021-03-25 08:37:33,112 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2537313432835821 [2021-03-25 08:37:33,112 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 102 transitions. [2021-03-25 08:37:33,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 102 transitions. [2021-03-25 08:37:33,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:33,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 102 transitions. [2021-03-25 08:37:33,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:33,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:33,112 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:33,112 INFO L185 Difference]: Start difference. First operand has 250 places, 524 transitions, 10142 flow. Second operand 6 states and 102 transitions. [2021-03-25 08:37:33,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 559 transitions, 12250 flow [2021-03-25 08:37:33,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 559 transitions, 12170 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:33,317 INFO L241 Difference]: Finished difference. Result has 254 places, 546 transitions, 10824 flow [2021-03-25 08:37:33,318 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=10062, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10824, PETRI_PLACES=254, PETRI_TRANSITIONS=546} [2021-03-25 08:37:33,318 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 239 predicate places. [2021-03-25 08:37:33,318 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:33,318 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 546 transitions, 10824 flow [2021-03-25 08:37:33,318 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 546 transitions, 10824 flow [2021-03-25 08:37:33,323 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 254 places, 546 transitions, 10824 flow [2021-03-25 08:37:33,535 INFO L129 PetriNetUnfolder]: 369/1261 cut-off events. [2021-03-25 08:37:33,535 INFO L130 PetriNetUnfolder]: For 28805/28852 co-relation queries the response was YES. [2021-03-25 08:37:33,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12155 conditions, 1261 events. 369/1261 cut-off events. For 28805/28852 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 11110 event pairs, 28 based on Foata normal form. 3/1261 useless extension candidates. Maximal degree in co-relation 11962. Up to 336 conditions per place. [2021-03-25 08:37:33,552 INFO L142 LiptonReduction]: Number of co-enabled transitions 286 [2021-03-25 08:37:33,689 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:33,689 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:33,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 372 [2021-03-25 08:37:33,690 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 545 transitions, 10840 flow [2021-03-25 08:37:33,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:33,690 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:33,690 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:33,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:33,890 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:33,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:33,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1598577620, now seen corresponding path program 1 times [2021-03-25 08:37:33,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:33,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267126908] [2021-03-25 08:37:33,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:33,903 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:37:33,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:33,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:33,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:33,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267126908] [2021-03-25 08:37:33,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446046387] [2021-03-25 08:37:33,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:33,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:37:33,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:33,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:33,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:33,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:33,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:33,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:33,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:33,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:33,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:33,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:33,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:33,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:33,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:33,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:37:33,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:33,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:33,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:33,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:33,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:33,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:33,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,977 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-25 08:37:33,977 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 08:37:33,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:33,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:33,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:33,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:33,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:33,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:33,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:33,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:33,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:33,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:33,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:33,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:33,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:33,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:33,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:33,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:33,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:33,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:34,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:34,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:34,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:37:34,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:34,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:34,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:37:34,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:34,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:34,030 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 08:37:34,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:34,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:34,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 08:37:34,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 08:37:34,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:34,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:34,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:34,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:34,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:34,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:34,052 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:34,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:34,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 08:37:34,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059378210] [2021-03-25 08:37:34,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 08:37:34,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:34,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 08:37:34,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-25 08:37:34,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 69 [2021-03-25 08:37:34,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 545 transitions, 10840 flow. Second operand has 12 states, 12 states have (on average 11.25) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:34,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:34,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 69 [2021-03-25 08:37:34,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:34,599 INFO L129 PetriNetUnfolder]: 385/1314 cut-off events. [2021-03-25 08:37:34,600 INFO L130 PetriNetUnfolder]: For 32955/33397 co-relation queries the response was YES. [2021-03-25 08:37:34,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13816 conditions, 1314 events. 385/1314 cut-off events. For 32955/33397 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 11381 event pairs, 28 based on Foata normal form. 60/1371 useless extension candidates. Maximal degree in co-relation 13611. Up to 945 conditions per place. [2021-03-25 08:37:34,613 INFO L132 encePairwiseOnDemand]: 46/69 looper letters, 497 selfloop transitions, 92 changer transitions 0/593 dead transitions. [2021-03-25 08:37:34,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 593 transitions, 13368 flow [2021-03-25 08:37:34,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 08:37:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 08:37:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 158 transitions. [2021-03-25 08:37:34,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20816864295125165 [2021-03-25 08:37:34,614 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 158 transitions. [2021-03-25 08:37:34,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 158 transitions. [2021-03-25 08:37:34,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:34,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 158 transitions. [2021-03-25 08:37:34,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 11 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:34,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:34,615 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:34,615 INFO L185 Difference]: Start difference. First operand has 253 places, 545 transitions, 10840 flow. Second operand 11 states and 158 transitions. [2021-03-25 08:37:34,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 593 transitions, 13368 flow [2021-03-25 08:37:34,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 593 transitions, 12807 flow, removed 271 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:34,794 INFO L241 Difference]: Finished difference. Result has 265 places, 570 transitions, 11418 flow [2021-03-25 08:37:34,794 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=10513, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11418, PETRI_PLACES=265, PETRI_TRANSITIONS=570} [2021-03-25 08:37:34,794 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 250 predicate places. [2021-03-25 08:37:34,794 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:34,794 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 570 transitions, 11418 flow [2021-03-25 08:37:34,794 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 570 transitions, 11418 flow [2021-03-25 08:37:34,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 265 places, 570 transitions, 11418 flow [2021-03-25 08:37:34,976 INFO L129 PetriNetUnfolder]: 385/1291 cut-off events. [2021-03-25 08:37:34,976 INFO L130 PetriNetUnfolder]: For 32617/32691 co-relation queries the response was YES. [2021-03-25 08:37:34,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12822 conditions, 1291 events. 385/1291 cut-off events. For 32617/32691 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11206 event pairs, 28 based on Foata normal form. 2/1290 useless extension candidates. Maximal degree in co-relation 12627. Up to 365 conditions per place. [2021-03-25 08:37:34,994 INFO L142 LiptonReduction]: Number of co-enabled transitions 310 [2021-03-25 08:37:35,035 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:35,035 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:35,035 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 241 [2021-03-25 08:37:35,035 INFO L480 AbstractCegarLoop]: Abstraction has has 265 places, 570 transitions, 11418 flow [2021-03-25 08:37:35,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:35,035 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:35,035 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:35,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:35,236 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:35,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:35,236 INFO L82 PathProgramCache]: Analyzing trace with hash 215954496, now seen corresponding path program 1 times [2021-03-25 08:37:35,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:35,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385978314] [2021-03-25 08:37:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:35,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:35,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:35,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:35,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:35,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385978314] [2021-03-25 08:37:35,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877701235] [2021-03-25 08:37:35,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:37:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:35,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:37:35,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:35,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:35,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,285 WARN L159 QuantifierPusher]: Ignoring assumption. Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:35,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:35,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:35,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:35,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:35,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:35,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:35,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:35,292 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:35,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:35,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:35,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:35,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:35,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:35,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:35,295 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:37:35,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:35,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:35,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:35,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:35,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:37:35,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725037170] [2021-03-25 08:37:35,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:35,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:35,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:35,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:35,303 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 69 [2021-03-25 08:37:35,303 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 570 transitions, 11418 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:35,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:35,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 69 [2021-03-25 08:37:35,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:35,845 INFO L129 PetriNetUnfolder]: 388/1322 cut-off events. [2021-03-25 08:37:35,846 INFO L130 PetriNetUnfolder]: For 33586/33780 co-relation queries the response was YES. [2021-03-25 08:37:35,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14000 conditions, 1322 events. 388/1322 cut-off events. For 33586/33780 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 11477 event pairs, 28 based on Foata normal form. 18/1337 useless extension candidates. Maximal degree in co-relation 13793. Up to 995 conditions per place. [2021-03-25 08:37:35,859 INFO L132 encePairwiseOnDemand]: 46/69 looper letters, 510 selfloop transitions, 70 changer transitions 1/585 dead transitions. [2021-03-25 08:37:35,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 585 transitions, 12942 flow [2021-03-25 08:37:35,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:35,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:35,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 134 transitions. [2021-03-25 08:37:35,860 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21578099838969403 [2021-03-25 08:37:35,861 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 134 transitions. [2021-03-25 08:37:35,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 134 transitions. [2021-03-25 08:37:35,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:35,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 134 transitions. [2021-03-25 08:37:35,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:35,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:35,862 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:35,862 INFO L185 Difference]: Start difference. First operand has 265 places, 570 transitions, 11418 flow. Second operand 9 states and 134 transitions. [2021-03-25 08:37:35,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 585 transitions, 12942 flow [2021-03-25 08:37:36,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 585 transitions, 12612 flow, removed 110 selfloop flow, removed 6 redundant places. [2021-03-25 08:37:36,078 INFO L241 Difference]: Finished difference. Result has 269 places, 577 transitions, 11493 flow [2021-03-25 08:37:36,078 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=11070, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=569, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11493, PETRI_PLACES=269, PETRI_TRANSITIONS=577} [2021-03-25 08:37:36,079 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 254 predicate places. [2021-03-25 08:37:36,079 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:36,079 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 577 transitions, 11493 flow [2021-03-25 08:37:36,079 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 577 transitions, 11493 flow [2021-03-25 08:37:36,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 269 places, 577 transitions, 11493 flow [2021-03-25 08:37:36,273 INFO L129 PetriNetUnfolder]: 388/1297 cut-off events. [2021-03-25 08:37:36,273 INFO L130 PetriNetUnfolder]: For 31196/31196 co-relation queries the response was YES. [2021-03-25 08:37:36,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12802 conditions, 1297 events. 388/1297 cut-off events. For 31196/31196 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 11269 event pairs, 28 based on Foata normal form. 0/1294 useless extension candidates. Maximal degree in co-relation 12605. Up to 361 conditions per place. [2021-03-25 08:37:36,291 INFO L142 LiptonReduction]: Number of co-enabled transitions 308 [2021-03-25 08:37:36,460 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:36,460 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 08:37:36,460 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 381 [2021-03-25 08:37:36,460 INFO L480 AbstractCegarLoop]: Abstraction has has 268 places, 576 transitions, 11515 flow [2021-03-25 08:37:36,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:36,460 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:36,460 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:36,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-03-25 08:37:36,661 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:36,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:36,661 INFO L82 PathProgramCache]: Analyzing trace with hash 218850078, now seen corresponding path program 1 times [2021-03-25 08:37:36,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:36,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422954902] [2021-03-25 08:37:36,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:36,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:36,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:36,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:36,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:36,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422954902] [2021-03-25 08:37:36,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810914279] [2021-03-25 08:37:36,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:36,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:36,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:36,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:36,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:36,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:36,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:36,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:36,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:36,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:36,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:36,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:36,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:36,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:36,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:36,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:36,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:36,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:36,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:36,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:36,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:36,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:36,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:36,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:36,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:36,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:36,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:36,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:36,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:36,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:36,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:36,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:36,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:36,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:36,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:36,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:36,740 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:36,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:36,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:36,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:36,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:36,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:36,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:36,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:36,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:36,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:36,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:36,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:36,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:36,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:36,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:36,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:36,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:36,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166039443] [2021-03-25 08:37:36,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:36,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:36,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:36,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:36,750 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 72 [2021-03-25 08:37:36,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 576 transitions, 11515 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:36,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:36,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 72 [2021-03-25 08:37:36,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:37,449 INFO L129 PetriNetUnfolder]: 390/1324 cut-off events. [2021-03-25 08:37:37,449 INFO L130 PetriNetUnfolder]: For 32718/32811 co-relation queries the response was YES. [2021-03-25 08:37:37,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13985 conditions, 1324 events. 390/1324 cut-off events. For 32718/32811 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 11483 event pairs, 28 based on Foata normal form. 29/1350 useless extension candidates. Maximal degree in co-relation 13776. Up to 1038 conditions per place. [2021-03-25 08:37:37,461 INFO L132 encePairwiseOnDemand]: 49/72 looper letters, 542 selfloop transitions, 36 changer transitions 0/582 dead transitions. [2021-03-25 08:37:37,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 582 transitions, 12890 flow [2021-03-25 08:37:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 131 transitions. [2021-03-25 08:37:37,462 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2021604938271605 [2021-03-25 08:37:37,462 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 131 transitions. [2021-03-25 08:37:37,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 131 transitions. [2021-03-25 08:37:37,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:37,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 131 transitions. [2021-03-25 08:37:37,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:37,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:37,463 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:37,463 INFO L185 Difference]: Start difference. First operand has 268 places, 576 transitions, 11515 flow. Second operand 9 states and 131 transitions. [2021-03-25 08:37:37,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 582 transitions, 12890 flow [2021-03-25 08:37:37,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 582 transitions, 12748 flow, removed 40 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:37,659 INFO L241 Difference]: Finished difference. Result has 275 places, 580 transitions, 11615 flow [2021-03-25 08:37:37,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=11373, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11615, PETRI_PLACES=275, PETRI_TRANSITIONS=580} [2021-03-25 08:37:37,660 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 260 predicate places. [2021-03-25 08:37:37,660 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:37,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 580 transitions, 11615 flow [2021-03-25 08:37:37,660 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 580 transitions, 11615 flow [2021-03-25 08:37:37,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 275 places, 580 transitions, 11615 flow [2021-03-25 08:37:37,851 INFO L129 PetriNetUnfolder]: 390/1301 cut-off events. [2021-03-25 08:37:37,851 INFO L130 PetriNetUnfolder]: For 33074/33082 co-relation queries the response was YES. [2021-03-25 08:37:37,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12963 conditions, 1301 events. 390/1301 cut-off events. For 33074/33082 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 11270 event pairs, 28 based on Foata normal form. 1/1299 useless extension candidates. Maximal degree in co-relation 12796. Up to 363 conditions per place. [2021-03-25 08:37:37,869 INFO L142 LiptonReduction]: Number of co-enabled transitions 312 [2021-03-25 08:37:37,911 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:37,911 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:37,911 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 251 [2021-03-25 08:37:37,912 INFO L480 AbstractCegarLoop]: Abstraction has has 275 places, 580 transitions, 11615 flow [2021-03-25 08:37:37,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:37,912 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:37,912 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:38,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-03-25 08:37:38,116 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:38,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:38,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1954939453, now seen corresponding path program 1 times [2021-03-25 08:37:38,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:38,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086029091] [2021-03-25 08:37:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:38,122 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:37:38,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:38,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:38,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086029091] [2021-03-25 08:37:38,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787136850] [2021-03-25 08:37:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:38,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:37:38,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:38,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:38,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:38,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:38,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:38,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:38,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:38,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:38,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:38,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:38,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:38,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:37:38,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:38,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:38,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:37:38,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:38,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,191 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-25 08:37:38,191 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 08:37:38,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:38,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:38,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:38,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:38,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:38,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:38,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:38,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:38,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:38,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:38,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:38,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:37:38,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:38,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:37:38,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:37:38,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:38,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:37:38,237 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 08:37:38,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:38,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:38,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 08:37:38,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 08:37:38,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:38,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:38,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:38,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:38,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:38,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:38,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:38,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:38,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:38,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:38,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:38,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 08:37:38,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112418899] [2021-03-25 08:37:38,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 08:37:38,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:38,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 08:37:38,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-25 08:37:38,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 72 [2021-03-25 08:37:38,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 580 transitions, 11615 flow. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:38,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:38,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 72 [2021-03-25 08:37:38,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:38,713 INFO L129 PetriNetUnfolder]: 396/1339 cut-off events. [2021-03-25 08:37:38,713 INFO L130 PetriNetUnfolder]: For 35509/35963 co-relation queries the response was YES. [2021-03-25 08:37:38,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14256 conditions, 1339 events. 396/1339 cut-off events. For 35509/35963 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 11585 event pairs, 28 based on Foata normal form. 23/1359 useless extension candidates. Maximal degree in co-relation 14085. Up to 1019 conditions per place. [2021-03-25 08:37:38,727 INFO L132 encePairwiseOnDemand]: 49/72 looper letters, 541 selfloop transitions, 54 changer transitions 0/599 dead transitions. [2021-03-25 08:37:38,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 599 transitions, 13300 flow [2021-03-25 08:37:38,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:37:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:37:38,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 125 transitions. [2021-03-25 08:37:38,728 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2170138888888889 [2021-03-25 08:37:38,728 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 125 transitions. [2021-03-25 08:37:38,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 125 transitions. [2021-03-25 08:37:38,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:38,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 125 transitions. [2021-03-25 08:37:38,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:38,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 72.0) internal successors, (648), 9 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:38,729 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 72.0) internal successors, (648), 9 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:38,729 INFO L185 Difference]: Start difference. First operand has 275 places, 580 transitions, 11615 flow. Second operand 8 states and 125 transitions. [2021-03-25 08:37:38,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 599 transitions, 13300 flow [2021-03-25 08:37:38,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 599 transitions, 13197 flow, removed 27 selfloop flow, removed 4 redundant places. [2021-03-25 08:37:38,966 INFO L241 Difference]: Finished difference. Result has 281 places, 592 transitions, 11935 flow [2021-03-25 08:37:38,966 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=11512, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11935, PETRI_PLACES=281, PETRI_TRANSITIONS=592} [2021-03-25 08:37:38,966 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 266 predicate places. [2021-03-25 08:37:38,966 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:38,966 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 281 places, 592 transitions, 11935 flow [2021-03-25 08:37:38,967 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 281 places, 592 transitions, 11935 flow [2021-03-25 08:37:38,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 281 places, 592 transitions, 11935 flow [2021-03-25 08:37:39,148 INFO L129 PetriNetUnfolder]: 396/1316 cut-off events. [2021-03-25 08:37:39,148 INFO L130 PetriNetUnfolder]: For 33937/33949 co-relation queries the response was YES. [2021-03-25 08:37:39,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13217 conditions, 1316 events. 396/1316 cut-off events. For 33937/33949 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 11406 event pairs, 28 based on Foata normal form. 1/1314 useless extension candidates. Maximal degree in co-relation 13049. Up to 367 conditions per place. [2021-03-25 08:37:39,165 INFO L142 LiptonReduction]: Number of co-enabled transitions 312 [2021-03-25 08:37:39,278 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:37:39,278 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:39,279 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 313 [2021-03-25 08:37:39,279 INFO L480 AbstractCegarLoop]: Abstraction has has 280 places, 591 transitions, 11933 flow [2021-03-25 08:37:39,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:39,279 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:39,279 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:39,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-03-25 08:37:39,479 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:39,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:39,480 INFO L82 PathProgramCache]: Analyzing trace with hash -258089146, now seen corresponding path program 1 times [2021-03-25 08:37:39,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:39,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330418121] [2021-03-25 08:37:39,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:39,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:39,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:39,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:39,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:39,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:39,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:39,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330418121] [2021-03-25 08:37:39,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751770455] [2021-03-25 08:37:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:39,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:37:39,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:39,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:39,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:39,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:39,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:39,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:39,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:39,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:39,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:39,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:39,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:39,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:39,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:39,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:39,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:39,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:39,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:39,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:39,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:39,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:39,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:39,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:39,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:39,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:39,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:39,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:39,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:39,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 08:37:39,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:37:39,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:39,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 08:37:39,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:37:39,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:39,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:39,586 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-25 08:37:39,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:39,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:39,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:37:39,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 08:37:39,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:39,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:39,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:39,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:39,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:39,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:39,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:39,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:39,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:39,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:39,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 08:37:39,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260202194] [2021-03-25 08:37:39,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:37:39,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:39,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:37:39,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:37:39,599 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 73 [2021-03-25 08:37:39,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 591 transitions, 11933 flow. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:39,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:39,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 73 [2021-03-25 08:37:39,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:40,252 INFO L129 PetriNetUnfolder]: 396/1339 cut-off events. [2021-03-25 08:37:40,252 INFO L130 PetriNetUnfolder]: For 34915/35076 co-relation queries the response was YES. [2021-03-25 08:37:40,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14324 conditions, 1339 events. 396/1339 cut-off events. For 34915/35076 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 11625 event pairs, 28 based on Foata normal form. 17/1353 useless extension candidates. Maximal degree in co-relation 14152. Up to 905 conditions per place. [2021-03-25 08:37:40,266 INFO L132 encePairwiseOnDemand]: 49/73 looper letters, 460 selfloop transitions, 159 changer transitions 0/623 dead transitions. [2021-03-25 08:37:40,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 623 transitions, 13981 flow [2021-03-25 08:37:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 08:37:40,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 08:37:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 200 transitions. [2021-03-25 08:37:40,267 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.182648401826484 [2021-03-25 08:37:40,267 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 200 transitions. [2021-03-25 08:37:40,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 200 transitions. [2021-03-25 08:37:40,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:40,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 200 transitions. [2021-03-25 08:37:40,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 13.333333333333334) internal successors, (200), 15 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:40,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 73.0) internal successors, (1168), 16 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:40,269 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 73.0) internal successors, (1168), 16 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:40,269 INFO L185 Difference]: Start difference. First operand has 280 places, 591 transitions, 11933 flow. Second operand 15 states and 200 transitions. [2021-03-25 08:37:40,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 623 transitions, 13981 flow [2021-03-25 08:37:40,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 623 transitions, 13873 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-25 08:37:40,629 INFO L241 Difference]: Finished difference. Result has 291 places, 601 transitions, 12474 flow [2021-03-25 08:37:40,630 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=11827, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12474, PETRI_PLACES=291, PETRI_TRANSITIONS=601} [2021-03-25 08:37:40,630 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 276 predicate places. [2021-03-25 08:37:40,630 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:40,631 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 291 places, 601 transitions, 12474 flow [2021-03-25 08:37:40,631 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 291 places, 601 transitions, 12474 flow [2021-03-25 08:37:40,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 291 places, 601 transitions, 12474 flow [2021-03-25 08:37:40,824 INFO L129 PetriNetUnfolder]: 396/1322 cut-off events. [2021-03-25 08:37:40,824 INFO L130 PetriNetUnfolder]: For 34332/34332 co-relation queries the response was YES. [2021-03-25 08:37:40,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13464 conditions, 1322 events. 396/1322 cut-off events. For 34332/34332 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11499 event pairs, 28 based on Foata normal form. 0/1319 useless extension candidates. Maximal degree in co-relation 13295. Up to 367 conditions per place. [2021-03-25 08:37:40,841 INFO L142 LiptonReduction]: Number of co-enabled transitions 310 [2021-03-25 08:37:40,877 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:40,877 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:40,877 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 247 [2021-03-25 08:37:40,877 INFO L480 AbstractCegarLoop]: Abstraction has has 291 places, 601 transitions, 12474 flow [2021-03-25 08:37:40,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:40,877 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:40,877 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:41,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:41,079 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:41,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:41,080 INFO L82 PathProgramCache]: Analyzing trace with hash -605540004, now seen corresponding path program 1 times [2021-03-25 08:37:41,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:41,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426017555] [2021-03-25 08:37:41,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:41,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:41,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,105 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:41,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:41,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426017555] [2021-03-25 08:37:41,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80189087] [2021-03-25 08:37:41,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:41,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:41,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:41,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:41,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:41,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:41,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:41,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:41,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:41,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:41,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:41,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:41,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:41,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:41,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:41,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:41,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:37:41,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170951565] [2021-03-25 08:37:41,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:41,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:41,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:41,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:41,156 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 73 [2021-03-25 08:37:41,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 601 transitions, 12474 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:41,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:41,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 73 [2021-03-25 08:37:41,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:41,612 INFO L129 PetriNetUnfolder]: 418/1410 cut-off events. [2021-03-25 08:37:41,612 INFO L130 PetriNetUnfolder]: For 38479/38640 co-relation queries the response was YES. [2021-03-25 08:37:41,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15547 conditions, 1410 events. 418/1410 cut-off events. For 38479/38640 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 12310 event pairs, 30 based on Foata normal form. 31/1438 useless extension candidates. Maximal degree in co-relation 15330. Up to 1085 conditions per place. [2021-03-25 08:37:41,629 INFO L132 encePairwiseOnDemand]: 51/73 looper letters, 589 selfloop transitions, 49 changer transitions 1/643 dead transitions. [2021-03-25 08:37:41,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 643 transitions, 15032 flow [2021-03-25 08:37:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:41,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:41,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 104 transitions. [2021-03-25 08:37:41,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2374429223744292 [2021-03-25 08:37:41,630 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 104 transitions. [2021-03-25 08:37:41,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 104 transitions. [2021-03-25 08:37:41,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:41,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 104 transitions. [2021-03-25 08:37:41,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:41,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:41,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:41,631 INFO L185 Difference]: Start difference. First operand has 291 places, 601 transitions, 12474 flow. Second operand 6 states and 104 transitions. [2021-03-25 08:37:41,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 643 transitions, 15032 flow [2021-03-25 08:37:41,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 643 transitions, 14679 flow, removed 91 selfloop flow, removed 7 redundant places. [2021-03-25 08:37:41,962 INFO L241 Difference]: Finished difference. Result has 292 places, 628 transitions, 13104 flow [2021-03-25 08:37:41,963 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=12121, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13104, PETRI_PLACES=292, PETRI_TRANSITIONS=628} [2021-03-25 08:37:41,963 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 277 predicate places. [2021-03-25 08:37:41,963 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:41,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 292 places, 628 transitions, 13104 flow [2021-03-25 08:37:41,963 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 292 places, 628 transitions, 13104 flow [2021-03-25 08:37:41,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 292 places, 628 transitions, 13104 flow [2021-03-25 08:37:42,200 INFO L129 PetriNetUnfolder]: 418/1393 cut-off events. [2021-03-25 08:37:42,200 INFO L130 PetriNetUnfolder]: For 38030/38073 co-relation queries the response was YES. [2021-03-25 08:37:42,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14436 conditions, 1393 events. 418/1393 cut-off events. For 38030/38073 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 12201 event pairs, 30 based on Foata normal form. 1/1391 useless extension candidates. Maximal degree in co-relation 14228. Up to 388 conditions per place. [2021-03-25 08:37:42,225 INFO L142 LiptonReduction]: Number of co-enabled transitions 338 [2021-03-25 08:37:42,349 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:37:42,349 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:42,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 386 [2021-03-25 08:37:42,350 INFO L480 AbstractCegarLoop]: Abstraction has has 292 places, 628 transitions, 13134 flow [2021-03-25 08:37:42,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:42,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:42,350 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:42,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-03-25 08:37:42,571 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:42,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:42,572 INFO L82 PathProgramCache]: Analyzing trace with hash -616713036, now seen corresponding path program 1 times [2021-03-25 08:37:42,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:42,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477097807] [2021-03-25 08:37:42,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:42,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:42,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:42,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:42,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:42,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:42,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:42,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477097807] [2021-03-25 08:37:42,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486446441] [2021-03-25 08:37:42,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:42,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:37:42,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:42,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:42,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:42,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:42,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:42,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:42,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:42,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:42,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:42,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:42,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:42,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:42,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:42,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:42,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:42,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:42,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:42,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:42,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:42,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:42,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:42,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:42,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:42,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:42,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:42,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:42,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:42,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:42,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:42,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:42,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:42,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:42,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:42,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:42,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:42,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:42,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:42,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:42,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:42,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:42,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:42,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:42,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 08:37:42,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:37:42,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:42,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 08:37:42,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:37:42,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:42,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:42,673 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-25 08:37:42,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:42,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:42,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:37:42,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 08:37:42,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:42,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:42,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:42,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:42,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:42,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:42,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:42,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:42,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:42,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:42,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 08:37:42,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653712430] [2021-03-25 08:37:42,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:37:42,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:42,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:37:42,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:37:42,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2021-03-25 08:37:42,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 628 transitions, 13134 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:42,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:42,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2021-03-25 08:37:42,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:43,473 INFO L129 PetriNetUnfolder]: 430/1445 cut-off events. [2021-03-25 08:37:43,473 INFO L130 PetriNetUnfolder]: For 41750/42006 co-relation queries the response was YES. [2021-03-25 08:37:43,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16055 conditions, 1445 events. 430/1445 cut-off events. For 41750/42006 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 12590 event pairs, 30 based on Foata normal form. 33/1475 useless extension candidates. Maximal degree in co-relation 15835. Up to 935 conditions per place. [2021-03-25 08:37:43,490 INFO L132 encePairwiseOnDemand]: 50/74 looper letters, 498 selfloop transitions, 197 changer transitions 0/699 dead transitions. [2021-03-25 08:37:43,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 699 transitions, 16273 flow [2021-03-25 08:37:43,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 08:37:43,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 08:37:43,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 217 transitions. [2021-03-25 08:37:43,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18327702702702703 [2021-03-25 08:37:43,491 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 217 transitions. [2021-03-25 08:37:43,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 217 transitions. [2021-03-25 08:37:43,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:43,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 217 transitions. [2021-03-25 08:37:43,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 13.5625) internal successors, (217), 16 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:43,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 74.0) internal successors, (1258), 17 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:43,492 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 74.0) internal successors, (1258), 17 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:43,493 INFO L185 Difference]: Start difference. First operand has 292 places, 628 transitions, 13134 flow. Second operand 16 states and 217 transitions. [2021-03-25 08:37:43,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 699 transitions, 16273 flow [2021-03-25 08:37:43,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 699 transitions, 15680 flow, removed 286 selfloop flow, removed 1 redundant places. [2021-03-25 08:37:43,758 INFO L241 Difference]: Finished difference. Result has 308 places, 647 transitions, 13704 flow [2021-03-25 08:37:43,758 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=12703, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13704, PETRI_PLACES=308, PETRI_TRANSITIONS=647} [2021-03-25 08:37:43,758 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 293 predicate places. [2021-03-25 08:37:43,758 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:43,758 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 308 places, 647 transitions, 13704 flow [2021-03-25 08:37:43,758 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 308 places, 647 transitions, 13704 flow [2021-03-25 08:37:43,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 308 places, 647 transitions, 13704 flow [2021-03-25 08:37:43,984 INFO L129 PetriNetUnfolder]: 430/1440 cut-off events. [2021-03-25 08:37:43,984 INFO L130 PetriNetUnfolder]: For 43109/43294 co-relation queries the response was YES. [2021-03-25 08:37:43,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15174 conditions, 1440 events. 430/1440 cut-off events. For 43109/43294 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 12651 event pairs, 30 based on Foata normal form. 4/1441 useless extension candidates. Maximal degree in co-relation 14963. Up to 411 conditions per place. [2021-03-25 08:37:44,005 INFO L142 LiptonReduction]: Number of co-enabled transitions 358 [2021-03-25 08:37:44,081 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:44,081 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:37:44,081 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 323 [2021-03-25 08:37:44,082 INFO L480 AbstractCegarLoop]: Abstraction has has 308 places, 647 transitions, 13704 flow [2021-03-25 08:37:44,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:44,082 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:44,082 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:44,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:44,283 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:44,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:44,284 INFO L82 PathProgramCache]: Analyzing trace with hash -2030400982, now seen corresponding path program 1 times [2021-03-25 08:37:44,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:44,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309160496] [2021-03-25 08:37:44,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:44,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:44,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:44,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:44,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309160496] [2021-03-25 08:37:44,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243580547] [2021-03-25 08:37:44,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:44,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:44,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:44,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:44,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:44,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:44,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:44,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:44,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:44,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:44,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:44,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:44,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:44,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:44,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:44,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:44,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:44,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:44,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:44,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:44,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:44,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:44,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:44,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:44,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:44,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:44,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:44,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:44,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:44,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:44,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:44,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:44,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:44,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:44,358 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:44,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:44,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:44,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:44,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:44,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:44,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:44,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:44,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:44,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:44,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:44,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:44,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:44,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:44,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:44,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:44,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:44,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032547290] [2021-03-25 08:37:44,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:44,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:44,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:44,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:44,371 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2021-03-25 08:37:44,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 647 transitions, 13704 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:44,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:44,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2021-03-25 08:37:44,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:45,021 INFO L129 PetriNetUnfolder]: 432/1453 cut-off events. [2021-03-25 08:37:45,021 INFO L130 PetriNetUnfolder]: For 45361/45777 co-relation queries the response was YES. [2021-03-25 08:37:45,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16444 conditions, 1453 events. 432/1453 cut-off events. For 45361/45777 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 12681 event pairs, 30 based on Foata normal form. 35/1485 useless extension candidates. Maximal degree in co-relation 16221. Up to 1139 conditions per place. [2021-03-25 08:37:45,039 INFO L132 encePairwiseOnDemand]: 50/74 looper letters, 610 selfloop transitions, 41 changer transitions 1/656 dead transitions. [2021-03-25 08:37:45,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 656 transitions, 15337 flow [2021-03-25 08:37:45,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 08:37:45,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 08:37:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 156 transitions. [2021-03-25 08:37:45,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19164619164619165 [2021-03-25 08:37:45,040 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 156 transitions. [2021-03-25 08:37:45,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 156 transitions. [2021-03-25 08:37:45,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:45,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 156 transitions. [2021-03-25 08:37:45,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 14.181818181818182) internal successors, (156), 11 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:45,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:45,041 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:45,041 INFO L185 Difference]: Start difference. First operand has 308 places, 647 transitions, 13704 flow. Second operand 11 states and 156 transitions. [2021-03-25 08:37:45,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 656 transitions, 15337 flow [2021-03-25 08:37:45,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 656 transitions, 14902 flow, removed 93 selfloop flow, removed 9 redundant places. [2021-03-25 08:37:45,340 INFO L241 Difference]: Finished difference. Result has 313 places, 653 transitions, 13590 flow [2021-03-25 08:37:45,341 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=13279, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13590, PETRI_PLACES=313, PETRI_TRANSITIONS=653} [2021-03-25 08:37:45,341 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 298 predicate places. [2021-03-25 08:37:45,341 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:45,341 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 313 places, 653 transitions, 13590 flow [2021-03-25 08:37:45,341 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 313 places, 653 transitions, 13590 flow [2021-03-25 08:37:45,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 313 places, 653 transitions, 13590 flow [2021-03-25 08:37:45,570 INFO L129 PetriNetUnfolder]: 432/1446 cut-off events. [2021-03-25 08:37:45,571 INFO L130 PetriNetUnfolder]: For 42564/42572 co-relation queries the response was YES. [2021-03-25 08:37:45,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15121 conditions, 1446 events. 432/1446 cut-off events. For 42564/42572 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 12720 event pairs, 30 based on Foata normal form. 1/1444 useless extension candidates. Maximal degree in co-relation 14940. Up to 408 conditions per place. [2021-03-25 08:37:45,593 INFO L142 LiptonReduction]: Number of co-enabled transitions 364 [2021-03-25 08:37:45,752 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:45,752 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:45,752 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 411 [2021-03-25 08:37:45,753 INFO L480 AbstractCegarLoop]: Abstraction has has 312 places, 652 transitions, 13602 flow [2021-03-25 08:37:45,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:45,753 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:45,753 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:45,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:45,953 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:45,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:45,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1914439002, now seen corresponding path program 1 times [2021-03-25 08:37:45,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:45,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65138151] [2021-03-25 08:37:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:45,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:45,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:45,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:45,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:45,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:45,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65138151] [2021-03-25 08:37:45,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383640806] [2021-03-25 08:37:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:45,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:37:45,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:45,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:45,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:45,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:45,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:45,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:45,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:45,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:45,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:45,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:45,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:45,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:45,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:45,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:45,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:45,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:45,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:45,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:46,001 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:46,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:46,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:46,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:46,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:46,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:46,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:46,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:46,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:46,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:46,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:46,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:46,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:46,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:46,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:46,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:46,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:46,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:46,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:46,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:37:46,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:37:46,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:46,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:46,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:46,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:46,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:46,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:46,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:37:46,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455408590] [2021-03-25 08:37:46,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:37:46,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:46,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:37:46,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:37:46,044 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 76 [2021-03-25 08:37:46,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 652 transitions, 13602 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:46,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:46,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 76 [2021-03-25 08:37:46,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:46,672 INFO L129 PetriNetUnfolder]: 435/1459 cut-off events. [2021-03-25 08:37:46,672 INFO L130 PetriNetUnfolder]: For 46578/47429 co-relation queries the response was YES. [2021-03-25 08:37:46,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16571 conditions, 1459 events. 435/1459 cut-off events. For 46578/47429 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 12814 event pairs, 0 based on Foata normal form. 47/1503 useless extension candidates. Maximal degree in co-relation 16386. Up to 631 conditions per place. [2021-03-25 08:37:46,690 INFO L132 encePairwiseOnDemand]: 49/76 looper letters, 561 selfloop transitions, 110 changer transitions 4/679 dead transitions. [2021-03-25 08:37:46,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 679 transitions, 15704 flow [2021-03-25 08:37:46,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 08:37:46,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 08:37:46,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 193 transitions. [2021-03-25 08:37:46,691 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18139097744360902 [2021-03-25 08:37:46,691 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 193 transitions. [2021-03-25 08:37:46,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 193 transitions. [2021-03-25 08:37:46,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:46,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 193 transitions. [2021-03-25 08:37:46,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:46,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 76.0) internal successors, (1140), 15 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:46,692 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 76.0) internal successors, (1140), 15 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:46,692 INFO L185 Difference]: Start difference. First operand has 312 places, 652 transitions, 13602 flow. Second operand 14 states and 193 transitions. [2021-03-25 08:37:46,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 679 transitions, 15704 flow [2021-03-25 08:37:46,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 679 transitions, 15580 flow, removed 35 selfloop flow, removed 5 redundant places. [2021-03-25 08:37:47,003 INFO L241 Difference]: Finished difference. Result has 324 places, 659 transitions, 14003 flow [2021-03-25 08:37:47,003 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=13469, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=651, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14003, PETRI_PLACES=324, PETRI_TRANSITIONS=659} [2021-03-25 08:37:47,003 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 309 predicate places. [2021-03-25 08:37:47,003 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:47,004 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 659 transitions, 14003 flow [2021-03-25 08:37:47,004 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 659 transitions, 14003 flow [2021-03-25 08:37:47,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 319 places, 659 transitions, 14003 flow [2021-03-25 08:37:47,242 INFO L129 PetriNetUnfolder]: 435/1476 cut-off events. [2021-03-25 08:37:47,243 INFO L130 PetriNetUnfolder]: For 44940/45108 co-relation queries the response was YES. [2021-03-25 08:37:47,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15542 conditions, 1476 events. 435/1476 cut-off events. For 44940/45108 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 13057 event pairs, 30 based on Foata normal form. 0/1473 useless extension candidates. Maximal degree in co-relation 15360. Up to 408 conditions per place. [2021-03-25 08:37:47,268 INFO L142 LiptonReduction]: Number of co-enabled transitions 356 [2021-03-25 08:37:47,539 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:47,539 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 08:37:47,540 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 537 [2021-03-25 08:37:47,540 INFO L480 AbstractCegarLoop]: Abstraction has has 319 places, 659 transitions, 14057 flow [2021-03-25 08:37:47,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:47,540 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:47,540 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:47,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-03-25 08:37:47,740 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:47,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:47,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1993735597, now seen corresponding path program 1 times [2021-03-25 08:37:47,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:47,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303276643] [2021-03-25 08:37:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:47,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:47,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,766 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:47,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:47,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303276643] [2021-03-25 08:37:47,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761570488] [2021-03-25 08:37:47,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:47,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:47,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:47,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:47,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:47,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:47,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:47,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:47,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:47,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:47,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:47,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:47,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:47,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:47,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:47,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:47,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:47,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:47,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:47,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:47,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:47,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:47,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:37:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:47,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:47,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:37:47,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921097528] [2021-03-25 08:37:47,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:47,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:47,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:47,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:47,830 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 79 [2021-03-25 08:37:47,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 659 transitions, 14057 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:47,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:47,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 79 [2021-03-25 08:37:47,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:48,533 INFO L129 PetriNetUnfolder]: 457/1526 cut-off events. [2021-03-25 08:37:48,533 INFO L130 PetriNetUnfolder]: For 49254/49489 co-relation queries the response was YES. [2021-03-25 08:37:48,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17833 conditions, 1526 events. 457/1526 cut-off events. For 49254/49489 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 13434 event pairs, 32 based on Foata normal form. 31/1554 useless extension candidates. Maximal degree in co-relation 17601. Up to 1191 conditions per place. [2021-03-25 08:37:48,550 INFO L132 encePairwiseOnDemand]: 54/79 looper letters, 644 selfloop transitions, 52 changer transitions 1/701 dead transitions. [2021-03-25 08:37:48,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 701 transitions, 16872 flow [2021-03-25 08:37:48,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:48,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2021-03-25 08:37:48,551 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22573839662447256 [2021-03-25 08:37:48,552 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 107 transitions. [2021-03-25 08:37:48,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 107 transitions. [2021-03-25 08:37:48,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:48,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 107 transitions. [2021-03-25 08:37:48,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:48,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:48,553 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:48,553 INFO L185 Difference]: Start difference. First operand has 319 places, 659 transitions, 14057 flow. Second operand 6 states and 107 transitions. [2021-03-25 08:37:48,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 701 transitions, 16872 flow [2021-03-25 08:37:48,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 701 transitions, 16747 flow, removed 49 selfloop flow, removed 3 redundant places. [2021-03-25 08:37:48,861 INFO L241 Difference]: Finished difference. Result has 324 places, 686 transitions, 15022 flow [2021-03-25 08:37:48,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=13936, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=15022, PETRI_PLACES=324, PETRI_TRANSITIONS=686} [2021-03-25 08:37:48,862 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 309 predicate places. [2021-03-25 08:37:48,862 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:48,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 686 transitions, 15022 flow [2021-03-25 08:37:48,862 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 686 transitions, 15022 flow [2021-03-25 08:37:48,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 324 places, 686 transitions, 15022 flow [2021-03-25 08:37:49,113 INFO L129 PetriNetUnfolder]: 457/1549 cut-off events. [2021-03-25 08:37:49,114 INFO L130 PetriNetUnfolder]: For 49585/49782 co-relation queries the response was YES. [2021-03-25 08:37:49,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16729 conditions, 1549 events. 457/1549 cut-off events. For 49585/49782 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 13763 event pairs, 32 based on Foata normal form. 0/1546 useless extension candidates. Maximal degree in co-relation 16505. Up to 428 conditions per place. [2021-03-25 08:37:49,139 INFO L142 LiptonReduction]: Number of co-enabled transitions 384 [2021-03-25 08:37:49,312 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:49,312 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:49,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 450 [2021-03-25 08:37:49,313 INFO L480 AbstractCegarLoop]: Abstraction has has 323 places, 685 transitions, 15043 flow [2021-03-25 08:37:49,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:49,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:49,313 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:49,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:49,516 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:49,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1147475495, now seen corresponding path program 2 times [2021-03-25 08:37:49,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:49,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947839234] [2021-03-25 08:37:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:49,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:49,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:49,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:49,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:49,543 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:49,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947839234] [2021-03-25 08:37:49,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632235592] [2021-03-25 08:37:49,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:49,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:37:49,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:37:49,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:37:49,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:49,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:49,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:49,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:49,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:49,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:49,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:49,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:49,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:49,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:49,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:49,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:49,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:49,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:49,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:49,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:49,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:49,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:49,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:49,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:49,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:49,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:49,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:49,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:49,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:49,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:49,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:49,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:49,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:49,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:37:49,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:37:49,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:49,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:49,612 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:37:49,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:49,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:49,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:37:49,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:37:49,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:49,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:49,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:49,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:49,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:49,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:49,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:49,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 08:37:49,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059917077] [2021-03-25 08:37:49,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:37:49,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:49,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:37:49,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:37:49,621 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 81 [2021-03-25 08:37:49,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 685 transitions, 15043 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:49,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:49,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 81 [2021-03-25 08:37:49,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:50,405 INFO L129 PetriNetUnfolder]: 473/1591 cut-off events. [2021-03-25 08:37:50,405 INFO L130 PetriNetUnfolder]: For 53983/54549 co-relation queries the response was YES. [2021-03-25 08:37:50,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18754 conditions, 1591 events. 473/1591 cut-off events. For 53983/54549 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 14150 event pairs, 32 based on Foata normal form. 53/1641 useless extension candidates. Maximal degree in co-relation 18519. Up to 1180 conditions per place. [2021-03-25 08:37:50,422 INFO L132 encePairwiseOnDemand]: 53/81 looper letters, 637 selfloop transitions, 93 changer transitions 0/734 dead transitions. [2021-03-25 08:37:50,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 734 transitions, 18262 flow [2021-03-25 08:37:50,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 08:37:50,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 08:37:50,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 218 transitions. [2021-03-25 08:37:50,428 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1794238683127572 [2021-03-25 08:37:50,428 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 218 transitions. [2021-03-25 08:37:50,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 218 transitions. [2021-03-25 08:37:50,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:50,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 218 transitions. [2021-03-25 08:37:50,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 14.533333333333333) internal successors, (218), 15 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:50,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:50,429 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:50,429 INFO L185 Difference]: Start difference. First operand has 323 places, 685 transitions, 15043 flow. Second operand 15 states and 218 transitions. [2021-03-25 08:37:50,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 734 transitions, 18262 flow [2021-03-25 08:37:50,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 734 transitions, 17742 flow, removed 248 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:50,775 INFO L241 Difference]: Finished difference. Result has 340 places, 714 transitions, 15868 flow [2021-03-25 08:37:50,776 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=14555, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15868, PETRI_PLACES=340, PETRI_TRANSITIONS=714} [2021-03-25 08:37:50,776 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 325 predicate places. [2021-03-25 08:37:50,776 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:50,776 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 340 places, 714 transitions, 15868 flow [2021-03-25 08:37:50,776 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 340 places, 714 transitions, 15868 flow [2021-03-25 08:37:50,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 340 places, 714 transitions, 15868 flow [2021-03-25 08:37:51,047 INFO L129 PetriNetUnfolder]: 473/1570 cut-off events. [2021-03-25 08:37:51,047 INFO L130 PetriNetUnfolder]: For 59160/59415 co-relation queries the response was YES. [2021-03-25 08:37:51,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17633 conditions, 1570 events. 473/1570 cut-off events. For 59160/59415 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 13954 event pairs, 33 based on Foata normal form. 4/1571 useless extension candidates. Maximal degree in co-relation 17406. Up to 447 conditions per place. [2021-03-25 08:37:51,074 INFO L142 LiptonReduction]: Number of co-enabled transitions 406 [2021-03-25 08:37:51,255 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:51,255 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:51,255 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 479 [2021-03-25 08:37:51,255 INFO L480 AbstractCegarLoop]: Abstraction has has 339 places, 713 transitions, 15881 flow [2021-03-25 08:37:51,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:51,255 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:51,255 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:51,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-03-25 08:37:51,456 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:51,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:51,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1389039272, now seen corresponding path program 1 times [2021-03-25 08:37:51,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:51,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201354014] [2021-03-25 08:37:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:51,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:51,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:51,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:51,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:51,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201354014] [2021-03-25 08:37:51,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078113141] [2021-03-25 08:37:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:51,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:37:51,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:51,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:51,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:51,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:51,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:51,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:51,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:51,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:51,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:51,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:51,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:51,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:51,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:51,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:51,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:51,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:51,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:51,509 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:51,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:51,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:51,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:51,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:51,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:51,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:51,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:51,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:51,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:51,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:51,513 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:37:51,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:51,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:51,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:51,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:37:51,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993087803] [2021-03-25 08:37:51,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:51,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:51,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:51,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:51,519 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 83 [2021-03-25 08:37:51,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 713 transitions, 15881 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:51,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:51,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 83 [2021-03-25 08:37:51,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:52,375 INFO L129 PetriNetUnfolder]: 476/1607 cut-off events. [2021-03-25 08:37:52,375 INFO L130 PetriNetUnfolder]: For 61276/61925 co-relation queries the response was YES. [2021-03-25 08:37:52,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19144 conditions, 1607 events. 476/1607 cut-off events. For 61276/61925 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 14278 event pairs, 33 based on Foata normal form. 40/1644 useless extension candidates. Maximal degree in co-relation 18906. Up to 1206 conditions per place. [2021-03-25 08:37:52,393 INFO L132 encePairwiseOnDemand]: 55/83 looper letters, 633 selfloop transitions, 90 changer transitions 1/728 dead transitions. [2021-03-25 08:37:52,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 728 transitions, 17764 flow [2021-03-25 08:37:52,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:52,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:52,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2021-03-25 08:37:52,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18741633199464525 [2021-03-25 08:37:52,394 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 140 transitions. [2021-03-25 08:37:52,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 140 transitions. [2021-03-25 08:37:52,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:52,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 140 transitions. [2021-03-25 08:37:52,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:52,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:52,394 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:52,395 INFO L185 Difference]: Start difference. First operand has 339 places, 713 transitions, 15881 flow. Second operand 9 states and 140 transitions. [2021-03-25 08:37:52,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 728 transitions, 17764 flow [2021-03-25 08:37:52,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 728 transitions, 17381 flow, removed 155 selfloop flow, removed 6 redundant places. [2021-03-25 08:37:52,758 INFO L241 Difference]: Finished difference. Result has 343 places, 719 transitions, 15963 flow [2021-03-25 08:37:52,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=15480, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15963, PETRI_PLACES=343, PETRI_TRANSITIONS=719} [2021-03-25 08:37:52,759 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 328 predicate places. [2021-03-25 08:37:52,759 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:52,759 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 343 places, 719 transitions, 15963 flow [2021-03-25 08:37:52,759 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 343 places, 719 transitions, 15963 flow [2021-03-25 08:37:52,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 342 places, 719 transitions, 15963 flow [2021-03-25 08:37:53,035 INFO L129 PetriNetUnfolder]: 476/1582 cut-off events. [2021-03-25 08:37:53,035 INFO L130 PetriNetUnfolder]: For 56970/57059 co-relation queries the response was YES. [2021-03-25 08:37:53,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17720 conditions, 1582 events. 476/1582 cut-off events. For 56970/57059 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 14078 event pairs, 33 based on Foata normal form. 0/1579 useless extension candidates. Maximal degree in co-relation 17491. Up to 444 conditions per place. [2021-03-25 08:37:53,062 INFO L142 LiptonReduction]: Number of co-enabled transitions 400 [2021-03-25 08:37:53,212 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:53,212 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:37:53,212 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 453 [2021-03-25 08:37:53,212 INFO L480 AbstractCegarLoop]: Abstraction has has 342 places, 719 transitions, 16001 flow [2021-03-25 08:37:53,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:53,212 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:53,212 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:53,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-03-25 08:37:53,413 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:53,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:53,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1166354554, now seen corresponding path program 1 times [2021-03-25 08:37:53,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:53,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929430013] [2021-03-25 08:37:53,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:53,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:53,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,440 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:37:53,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:53,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929430013] [2021-03-25 08:37:53,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104545391] [2021-03-25 08:37:53,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:53,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:37:53,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:53,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:53,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:53,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:53,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:53,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:53,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:53,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:53,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:37:53,490 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:53,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:53,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:37:53,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063708071] [2021-03-25 08:37:53,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:53,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:53,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:53,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:53,491 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 84 [2021-03-25 08:37:53,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 719 transitions, 16001 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:53,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:53,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 84 [2021-03-25 08:37:53,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:54,255 INFO L129 PetriNetUnfolder]: 498/1678 cut-off events. [2021-03-25 08:37:54,255 INFO L130 PetriNetUnfolder]: For 63291/63900 co-relation queries the response was YES. [2021-03-25 08:37:54,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20237 conditions, 1678 events. 498/1678 cut-off events. For 63291/63900 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 15027 event pairs, 35 based on Foata normal form. 40/1715 useless extension candidates. Maximal degree in co-relation 19997. Up to 1296 conditions per place. [2021-03-25 08:37:54,280 INFO L132 encePairwiseOnDemand]: 57/84 looper letters, 702 selfloop transitions, 54 changer transitions 1/761 dead transitions. [2021-03-25 08:37:54,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 761 transitions, 19081 flow [2021-03-25 08:37:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:37:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:37:54,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 109 transitions. [2021-03-25 08:37:54,281 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21626984126984128 [2021-03-25 08:37:54,281 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 109 transitions. [2021-03-25 08:37:54,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 109 transitions. [2021-03-25 08:37:54,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:54,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 109 transitions. [2021-03-25 08:37:54,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:54,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:54,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:54,282 INFO L185 Difference]: Start difference. First operand has 342 places, 719 transitions, 16001 flow. Second operand 6 states and 109 transitions. [2021-03-25 08:37:54,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 761 transitions, 19081 flow [2021-03-25 08:37:54,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 761 transitions, 18944 flow, removed 41 selfloop flow, removed 3 redundant places. [2021-03-25 08:37:54,737 INFO L241 Difference]: Finished difference. Result has 347 places, 746 transitions, 17051 flow [2021-03-25 08:37:54,738 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=15864, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=17051, PETRI_PLACES=347, PETRI_TRANSITIONS=746} [2021-03-25 08:37:54,738 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 332 predicate places. [2021-03-25 08:37:54,738 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:54,738 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 347 places, 746 transitions, 17051 flow [2021-03-25 08:37:54,738 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 347 places, 746 transitions, 17051 flow [2021-03-25 08:37:54,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 347 places, 746 transitions, 17051 flow [2021-03-25 08:37:55,068 INFO L129 PetriNetUnfolder]: 498/1653 cut-off events. [2021-03-25 08:37:55,069 INFO L130 PetriNetUnfolder]: For 62773/62845 co-relation queries the response was YES. [2021-03-25 08:37:55,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19104 conditions, 1653 events. 498/1653 cut-off events. For 62773/62845 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 14796 event pairs, 35 based on Foata normal form. 1/1651 useless extension candidates. Maximal degree in co-relation 18869. Up to 466 conditions per place. [2021-03-25 08:37:55,102 INFO L142 LiptonReduction]: Number of co-enabled transitions 428 [2021-03-25 08:37:55,302 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:37:55,302 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:37:55,302 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 564 [2021-03-25 08:37:55,302 INFO L480 AbstractCegarLoop]: Abstraction has has 346 places, 745 transitions, 17072 flow [2021-03-25 08:37:55,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:55,302 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:55,302 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:55,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:55,503 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:55,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:55,503 INFO L82 PathProgramCache]: Analyzing trace with hash -2058177662, now seen corresponding path program 1 times [2021-03-25 08:37:55,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:55,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186182810] [2021-03-25 08:37:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:55,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:55,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:55,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:55,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:55,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:55,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:55,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186182810] [2021-03-25 08:37:55,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345916384] [2021-03-25 08:37:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:37:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:55,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:37:55,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:55,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:55,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:55,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:55,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:55,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:55,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:55,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:55,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:55,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:55,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:55,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:55,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:55,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:55,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:55,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:55,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:55,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:55,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:55,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:55,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:55,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:55,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:55,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:55,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:37:55,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:55,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:37:55,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:55,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:55,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:55,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:55,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:37:55,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:37:55,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:55,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:37:55,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:55,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:37:55,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:37:55,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:55,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:37:55,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:37:55,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:55,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:55,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:55,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:55,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:55,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:37:55,629 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-25 08:37:55,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:37:55,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:55,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 08:37:55,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:37:55,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:55,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:55,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:55,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:55,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:55,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:55,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:55,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:55,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:55,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 08:37:55,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849327091] [2021-03-25 08:37:55,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:37:55,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:55,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:37:55,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:37:55,643 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 86 [2021-03-25 08:37:55,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 745 transitions, 17072 flow. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:55,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:55,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 86 [2021-03-25 08:37:55,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:56,803 INFO L129 PetriNetUnfolder]: 621/2009 cut-off events. [2021-03-25 08:37:56,803 INFO L130 PetriNetUnfolder]: For 79915/80228 co-relation queries the response was YES. [2021-03-25 08:37:56,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25792 conditions, 2009 events. 621/2009 cut-off events. For 79915/80228 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 18489 event pairs, 41 based on Foata normal form. 23/2029 useless extension candidates. Maximal degree in co-relation 25534. Up to 825 conditions per place. [2021-03-25 08:37:56,828 INFO L132 encePairwiseOnDemand]: 55/86 looper letters, 528 selfloop transitions, 438 changer transitions 0/970 dead transitions. [2021-03-25 08:37:56,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 970 transitions, 25486 flow [2021-03-25 08:37:56,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 08:37:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 08:37:56,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 257 transitions. [2021-03-25 08:37:56,829 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17578659370725033 [2021-03-25 08:37:56,829 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 257 transitions. [2021-03-25 08:37:56,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 257 transitions. [2021-03-25 08:37:56,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:56,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 257 transitions. [2021-03-25 08:37:56,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 15.117647058823529) internal successors, (257), 17 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:56,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 86.0) internal successors, (1548), 18 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:56,831 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 86.0) internal successors, (1548), 18 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:56,831 INFO L185 Difference]: Start difference. First operand has 346 places, 745 transitions, 17072 flow. Second operand 17 states and 257 transitions. [2021-03-25 08:37:56,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 970 transitions, 25486 flow [2021-03-25 08:37:57,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 970 transitions, 24938 flow, removed 261 selfloop flow, removed 2 redundant places. [2021-03-25 08:37:57,367 INFO L241 Difference]: Finished difference. Result has 362 places, 901 transitions, 22078 flow [2021-03-25 08:37:57,368 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=16536, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=306, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=22078, PETRI_PLACES=362, PETRI_TRANSITIONS=901} [2021-03-25 08:37:57,368 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 347 predicate places. [2021-03-25 08:37:57,368 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:37:57,368 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 362 places, 901 transitions, 22078 flow [2021-03-25 08:37:57,368 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 362 places, 901 transitions, 22078 flow [2021-03-25 08:37:57,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 362 places, 901 transitions, 22078 flow [2021-03-25 08:37:57,795 INFO L129 PetriNetUnfolder]: 621/2012 cut-off events. [2021-03-25 08:37:57,795 INFO L130 PetriNetUnfolder]: For 84393/84403 co-relation queries the response was YES. [2021-03-25 08:37:57,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24683 conditions, 2012 events. 621/2012 cut-off events. For 84393/84403 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 18672 event pairs, 41 based on Foata normal form. 0/2009 useless extension candidates. Maximal degree in co-relation 24435. Up to 590 conditions per place. [2021-03-25 08:37:57,851 INFO L142 LiptonReduction]: Number of co-enabled transitions 466 [2021-03-25 08:37:58,334 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:37:58,334 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:37:58,334 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 966 [2021-03-25 08:37:58,334 INFO L480 AbstractCegarLoop]: Abstraction has has 362 places, 901 transitions, 22121 flow [2021-03-25 08:37:58,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:58,334 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:37:58,334 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:37:58,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-03-25 08:37:58,540 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:37:58,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:37:58,540 INFO L82 PathProgramCache]: Analyzing trace with hash 481582230, now seen corresponding path program 1 times [2021-03-25 08:37:58,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:37:58,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595106722] [2021-03-25 08:37:58,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:37:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:58,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:37:58,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:58,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:58,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:58,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595106722] [2021-03-25 08:37:58,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401742676] [2021-03-25 08:37:58,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:37:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:37:58,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:37:58,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:37:58,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:58,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:58,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:58,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:58,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:58,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:58,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:58,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:37:58,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:58,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:58,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:58,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:58,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:58,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:58,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:37:58,619 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:37:58,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:58,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:37:58,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:37:58,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:37:58,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:58,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:58,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:58,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:58,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:58,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:37:58,624 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:37:58,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:37:58,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:37:58,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:37:58,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:37:58,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:37:58,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116786140] [2021-03-25 08:37:58,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:37:58,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:37:58,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:37:58,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:37:58,630 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 90 [2021-03-25 08:37:58,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 901 transitions, 22121 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:58,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:37:58,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 90 [2021-03-25 08:37:58,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:37:59,837 INFO L129 PetriNetUnfolder]: 622/2028 cut-off events. [2021-03-25 08:37:59,838 INFO L130 PetriNetUnfolder]: For 85753/86328 co-relation queries the response was YES. [2021-03-25 08:37:59,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26539 conditions, 2028 events. 622/2028 cut-off events. For 85753/86328 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 18740 event pairs, 41 based on Foata normal form. 19/2043 useless extension candidates. Maximal degree in co-relation 26279. Up to 1543 conditions per place. [2021-03-25 08:37:59,863 INFO L132 encePairwiseOnDemand]: 57/90 looper letters, 804 selfloop transitions, 110 changer transitions 2/920 dead transitions. [2021-03-25 08:37:59,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 920 transitions, 24565 flow [2021-03-25 08:37:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:37:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:37:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2021-03-25 08:37:59,864 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17901234567901234 [2021-03-25 08:37:59,864 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 145 transitions. [2021-03-25 08:37:59,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 145 transitions. [2021-03-25 08:37:59,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:37:59,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 145 transitions. [2021-03-25 08:37:59,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 9 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:59,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:59,866 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:37:59,866 INFO L185 Difference]: Start difference. First operand has 362 places, 901 transitions, 22121 flow. Second operand 9 states and 145 transitions. [2021-03-25 08:37:59,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 920 transitions, 24565 flow [2021-03-25 08:38:00,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 920 transitions, 22139 flow, removed 1149 selfloop flow, removed 13 redundant places. [2021-03-25 08:38:00,487 INFO L241 Difference]: Finished difference. Result has 360 places, 909 transitions, 20406 flow [2021-03-25 08:38:00,488 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=19858, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=791, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=20406, PETRI_PLACES=360, PETRI_TRANSITIONS=909} [2021-03-25 08:38:00,488 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 345 predicate places. [2021-03-25 08:38:00,488 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:00,488 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 360 places, 909 transitions, 20406 flow [2021-03-25 08:38:00,488 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 360 places, 909 transitions, 20406 flow [2021-03-25 08:38:00,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 360 places, 909 transitions, 20406 flow [2021-03-25 08:38:00,880 INFO L129 PetriNetUnfolder]: 622/2024 cut-off events. [2021-03-25 08:38:00,880 INFO L130 PetriNetUnfolder]: For 73138/73150 co-relation queries the response was YES. [2021-03-25 08:38:00,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22757 conditions, 2024 events. 622/2024 cut-off events. For 73138/73150 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 18811 event pairs, 41 based on Foata normal form. 0/2015 useless extension candidates. Maximal degree in co-relation 22527. Up to 567 conditions per place. [2021-03-25 08:38:00,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 464 [2021-03-25 08:38:01,007 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:38:01,007 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:38:01,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 519 [2021-03-25 08:38:01,007 INFO L480 AbstractCegarLoop]: Abstraction has has 360 places, 909 transitions, 20406 flow [2021-03-25 08:38:01,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:01,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:01,008 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:01,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:01,208 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:01,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:01,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1200904564, now seen corresponding path program 1 times [2021-03-25 08:38:01,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:01,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957234219] [2021-03-25 08:38:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:01,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:01,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:01,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:01,230 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:01,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957234219] [2021-03-25 08:38:01,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002972514] [2021-03-25 08:38:01,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:01,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:38:01,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:01,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:01,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:01,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:01,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:01,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:01,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:01,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:01,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:01,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:01,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:01,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:01,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:01,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:01,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:01,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:01,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:01,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:01,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:01,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:01,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:01,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:01,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:01,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:01,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:01,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:01,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:01,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:01,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:38:01,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:01,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:01,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:38:01,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:01,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:01,304 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:38:01,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:38:01,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:01,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:38:01,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:38:01,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:01,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:01,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:01,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:01,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:01,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:01,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:01,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:01,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:01,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:01,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:38:01,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84862612] [2021-03-25 08:38:01,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:38:01,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:01,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:38:01,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:38:01,316 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 90 [2021-03-25 08:38:01,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 909 transitions, 20406 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:01,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:01,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 90 [2021-03-25 08:38:01,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:02,208 INFO L129 PetriNetUnfolder]: 624/2032 cut-off events. [2021-03-25 08:38:02,208 INFO L130 PetriNetUnfolder]: For 76780/77510 co-relation queries the response was YES. [2021-03-25 08:38:02,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24525 conditions, 2032 events. 624/2032 cut-off events. For 76780/77510 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 18813 event pairs, 41 based on Foata normal form. 23/2046 useless extension candidates. Maximal degree in co-relation 24284. Up to 1628 conditions per place. [2021-03-25 08:38:02,234 INFO L132 encePairwiseOnDemand]: 59/90 looper letters, 864 selfloop transitions, 47 changer transitions 0/915 dead transitions. [2021-03-25 08:38:02,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 915 transitions, 22501 flow [2021-03-25 08:38:02,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:38:02,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:38:02,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2021-03-25 08:38:02,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1728395061728395 [2021-03-25 08:38:02,235 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 140 transitions. [2021-03-25 08:38:02,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 140 transitions. [2021-03-25 08:38:02,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:02,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 140 transitions. [2021-03-25 08:38:02,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:02,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:02,236 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:02,236 INFO L185 Difference]: Start difference. First operand has 360 places, 909 transitions, 20406 flow. Second operand 9 states and 140 transitions. [2021-03-25 08:38:02,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 915 transitions, 22501 flow [2021-03-25 08:38:02,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 915 transitions, 22415 flow, removed 23 selfloop flow, removed 3 redundant places. [2021-03-25 08:38:02,790 INFO L241 Difference]: Finished difference. Result has 368 places, 913 transitions, 20632 flow [2021-03-25 08:38:02,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=20322, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=909, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=862, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=20632, PETRI_PLACES=368, PETRI_TRANSITIONS=913} [2021-03-25 08:38:02,790 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 353 predicate places. [2021-03-25 08:38:02,790 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:02,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 368 places, 913 transitions, 20632 flow [2021-03-25 08:38:02,791 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 368 places, 913 transitions, 20632 flow [2021-03-25 08:38:02,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 368 places, 913 transitions, 20632 flow [2021-03-25 08:38:03,192 INFO L129 PetriNetUnfolder]: 624/2030 cut-off events. [2021-03-25 08:38:03,193 INFO L130 PetriNetUnfolder]: For 76168/76242 co-relation queries the response was YES. [2021-03-25 08:38:03,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23001 conditions, 2030 events. 624/2030 cut-off events. For 76168/76242 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 18920 event pairs, 41 based on Foata normal form. 0/2021 useless extension candidates. Maximal degree in co-relation 22790. Up to 567 conditions per place. [2021-03-25 08:38:03,232 INFO L142 LiptonReduction]: Number of co-enabled transitions 468 [2021-03-25 08:38:03,325 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:38:03,325 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:38:03,325 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 535 [2021-03-25 08:38:03,325 INFO L480 AbstractCegarLoop]: Abstraction has has 368 places, 913 transitions, 20632 flow [2021-03-25 08:38:03,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:03,325 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:03,325 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:03,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-03-25 08:38:03,526 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:03,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:03,526 INFO L82 PathProgramCache]: Analyzing trace with hash -933085532, now seen corresponding path program 1 times [2021-03-25 08:38:03,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:03,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881288352] [2021-03-25 08:38:03,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:03,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:03,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:03,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:03,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:03,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:03,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881288352] [2021-03-25 08:38:03,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546078614] [2021-03-25 08:38:03,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:03,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:38:03,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:03,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:03,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:03,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:03,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:03,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:03,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:03,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:03,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:03,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:03,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:03,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:03,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:03,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:03,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:03,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:03,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:03,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:03,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:03,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:38:03,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:38:03,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:03,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:38:03,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:38:03,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:03,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:03,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:03,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:38:03,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:03,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:03,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:38:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:03,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:38:03,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:38:03,623 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-25 08:38:03,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:38:03,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:03,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 08:38:03,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:38:03,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:03,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:03,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:03,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 08:38:03,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763228954] [2021-03-25 08:38:03,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:38:03,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:03,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:38:03,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:38:03,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 90 [2021-03-25 08:38:03,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 913 transitions, 20632 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:03,635 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:03,635 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 90 [2021-03-25 08:38:03,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:04,685 INFO L129 PetriNetUnfolder]: 632/2071 cut-off events. [2021-03-25 08:38:04,685 INFO L130 PetriNetUnfolder]: For 81303/81485 co-relation queries the response was YES. [2021-03-25 08:38:04,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25096 conditions, 2071 events. 632/2071 cut-off events. For 81303/81485 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 19318 event pairs, 41 based on Foata normal form. 19/2081 useless extension candidates. Maximal degree in co-relation 24881. Up to 1557 conditions per place. [2021-03-25 08:38:04,715 INFO L132 encePairwiseOnDemand]: 58/90 looper letters, 850 selfloop transitions, 104 changer transitions 1/959 dead transitions. [2021-03-25 08:38:04,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 959 transitions, 23903 flow [2021-03-25 08:38:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 08:38:04,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 08:38:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 266 transitions. [2021-03-25 08:38:04,716 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16419753086419753 [2021-03-25 08:38:04,716 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 266 transitions. [2021-03-25 08:38:04,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 266 transitions. [2021-03-25 08:38:04,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:04,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 266 transitions. [2021-03-25 08:38:04,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 14.777777777777779) internal successors, (266), 18 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:04,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 90.0) internal successors, (1710), 19 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:04,718 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 90.0) internal successors, (1710), 19 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:04,718 INFO L185 Difference]: Start difference. First operand has 368 places, 913 transitions, 20632 flow. Second operand 18 states and 266 transitions. [2021-03-25 08:38:04,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 959 transitions, 23903 flow [2021-03-25 08:38:05,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 959 transitions, 23774 flow, removed 32 selfloop flow, removed 4 redundant places. [2021-03-25 08:38:05,321 INFO L241 Difference]: Finished difference. Result has 387 places, 932 transitions, 21308 flow [2021-03-25 08:38:05,322 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=20503, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=913, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=820, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=21308, PETRI_PLACES=387, PETRI_TRANSITIONS=932} [2021-03-25 08:38:05,322 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 372 predicate places. [2021-03-25 08:38:05,322 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:05,322 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 387 places, 932 transitions, 21308 flow [2021-03-25 08:38:05,322 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 387 places, 932 transitions, 21308 flow [2021-03-25 08:38:05,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 387 places, 932 transitions, 21308 flow [2021-03-25 08:38:05,753 INFO L129 PetriNetUnfolder]: 632/2069 cut-off events. [2021-03-25 08:38:05,754 INFO L130 PetriNetUnfolder]: For 93352/93376 co-relation queries the response was YES. [2021-03-25 08:38:05,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24197 conditions, 2069 events. 632/2069 cut-off events. For 93352/93376 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 19386 event pairs, 41 based on Foata normal form. 0/2060 useless extension candidates. Maximal degree in co-relation 23982. Up to 579 conditions per place. [2021-03-25 08:38:05,794 INFO L142 LiptonReduction]: Number of co-enabled transitions 478 [2021-03-25 08:38:06,042 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:38:06,042 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:38:06,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 720 [2021-03-25 08:38:06,043 INFO L480 AbstractCegarLoop]: Abstraction has has 386 places, 931 transitions, 21296 flow [2021-03-25 08:38:06,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:06,043 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:06,043 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:06,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:06,243 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:06,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:06,244 INFO L82 PathProgramCache]: Analyzing trace with hash -590567056, now seen corresponding path program 1 times [2021-03-25 08:38:06,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:06,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223809590] [2021-03-25 08:38:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:06,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:06,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,281 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:38:06,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:06,283 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:06,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223809590] [2021-03-25 08:38:06,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092503685] [2021-03-25 08:38:06,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:06,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:38:06,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:06,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:06,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:06,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:06,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:06,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:06,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:06,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:06,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:06,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:06,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:06,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:06,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:06,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:06,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:06,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:06,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:06,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:06,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:38:06,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:38:06,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:38:06,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:38:06,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:06,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:38:06,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:06,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:06,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:38:06,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476552045] [2021-03-25 08:38:06,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:38:06,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:06,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:38:06,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:38:06,353 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 91 [2021-03-25 08:38:06,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 931 transitions, 21296 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:06,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:06,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 91 [2021-03-25 08:38:06,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:07,427 INFO L129 PetriNetUnfolder]: 654/2141 cut-off events. [2021-03-25 08:38:07,428 INFO L130 PetriNetUnfolder]: For 101199/101952 co-relation queries the response was YES. [2021-03-25 08:38:07,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27125 conditions, 2141 events. 654/2141 cut-off events. For 101199/101952 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 20070 event pairs, 43 based on Foata normal form. 32/2164 useless extension candidates. Maximal degree in co-relation 26874. Up to 1684 conditions per place. [2021-03-25 08:38:07,462 INFO L132 encePairwiseOnDemand]: 61/91 looper letters, 906 selfloop transitions, 63 changer transitions 1/974 dead transitions. [2021-03-25 08:38:07,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 974 transitions, 24958 flow [2021-03-25 08:38:07,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:38:07,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:38:07,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2021-03-25 08:38:07,468 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18818681318681318 [2021-03-25 08:38:07,469 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 137 transitions. [2021-03-25 08:38:07,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 137 transitions. [2021-03-25 08:38:07,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:07,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 137 transitions. [2021-03-25 08:38:07,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:07,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:07,470 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:07,470 INFO L185 Difference]: Start difference. First operand has 386 places, 931 transitions, 21296 flow. Second operand 8 states and 137 transitions. [2021-03-25 08:38:07,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 974 transitions, 24958 flow [2021-03-25 08:38:08,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 974 transitions, 24493 flow, removed 127 selfloop flow, removed 8 redundant places. [2021-03-25 08:38:08,171 INFO L241 Difference]: Finished difference. Result has 389 places, 959 transitions, 22122 flow [2021-03-25 08:38:08,172 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=20835, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=931, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=879, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22122, PETRI_PLACES=389, PETRI_TRANSITIONS=959} [2021-03-25 08:38:08,172 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 374 predicate places. [2021-03-25 08:38:08,172 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:08,172 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 959 transitions, 22122 flow [2021-03-25 08:38:08,172 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 959 transitions, 22122 flow [2021-03-25 08:38:08,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 959 transitions, 22122 flow [2021-03-25 08:38:08,598 INFO L129 PetriNetUnfolder]: 654/2139 cut-off events. [2021-03-25 08:38:08,598 INFO L130 PetriNetUnfolder]: For 97375/97375 co-relation queries the response was YES. [2021-03-25 08:38:08,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25477 conditions, 2139 events. 654/2139 cut-off events. For 97375/97375 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 20085 event pairs, 43 based on Foata normal form. 0/2130 useless extension candidates. Maximal degree in co-relation 25231. Up to 597 conditions per place. [2021-03-25 08:38:08,637 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 08:38:09,134 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 08:38:09,134 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 08:38:09,134 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 962 [2021-03-25 08:38:09,134 INFO L480 AbstractCegarLoop]: Abstraction has has 387 places, 957 transitions, 22152 flow [2021-03-25 08:38:09,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:09,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:09,134 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:09,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2021-03-25 08:38:09,335 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:09,335 INFO L82 PathProgramCache]: Analyzing trace with hash -312663390, now seen corresponding path program 2 times [2021-03-25 08:38:09,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:09,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485639204] [2021-03-25 08:38:09,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:09,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:09,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:09,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:09,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:09,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:09,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:09,360 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:09,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485639204] [2021-03-25 08:38:09,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459702074] [2021-03-25 08:38:09,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:09,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:38:09,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:38:09,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:38:09,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:09,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:09,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:09,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:09,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:09,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:09,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:09,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:09,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:09,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:09,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:09,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:09,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:09,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:09,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:09,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:09,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:09,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:09,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:09,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:09,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:09,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:09,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:09,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:09,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:09,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:09,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:09,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:09,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:09,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:09,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:38:09,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:38:09,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:09,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:38:09,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:38:09,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:09,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:09,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:09,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:09,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:09,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:09,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:09,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:38:09,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:38:09,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:09,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:38:09,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:38:09,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:38:09,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:38:09,436 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-25 08:38:09,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:38:09,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:09,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 08:38:09,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:38:09,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:09,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:09,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:09,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:09,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:09,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:09,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:09,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:09,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:09,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:09,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 08:38:09,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134845215] [2021-03-25 08:38:09,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:38:09,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:09,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:38:09,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:38:09,448 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 94 [2021-03-25 08:38:09,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 957 transitions, 22152 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:09,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:09,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 94 [2021-03-25 08:38:09,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:10,945 INFO L129 PetriNetUnfolder]: 677/2169 cut-off events. [2021-03-25 08:38:10,945 INFO L130 PetriNetUnfolder]: For 115446/115454 co-relation queries the response was YES. [2021-03-25 08:38:10,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27922 conditions, 2169 events. 677/2169 cut-off events. For 115446/115454 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 20177 event pairs, 40 based on Foata normal form. 48/2208 useless extension candidates. Maximal degree in co-relation 27710. Up to 1520 conditions per place. [2021-03-25 08:38:10,980 INFO L132 encePairwiseOnDemand]: 59/94 looper letters, 790 selfloop transitions, 247 changer transitions 1/1042 dead transitions. [2021-03-25 08:38:10,980 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 1042 transitions, 26859 flow [2021-03-25 08:38:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-25 08:38:10,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-03-25 08:38:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 368 transitions. [2021-03-25 08:38:10,981 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15057283142389524 [2021-03-25 08:38:10,981 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 368 transitions. [2021-03-25 08:38:10,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 368 transitions. [2021-03-25 08:38:10,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:10,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 368 transitions. [2021-03-25 08:38:10,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 14.153846153846153) internal successors, (368), 26 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:10,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 94.0) internal successors, (2538), 27 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:10,984 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 94.0) internal successors, (2538), 27 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:10,984 INFO L185 Difference]: Start difference. First operand has 387 places, 957 transitions, 22152 flow. Second operand 26 states and 368 transitions. [2021-03-25 08:38:10,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 1042 transitions, 26859 flow [2021-03-25 08:38:11,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1042 transitions, 26063 flow, removed 378 selfloop flow, removed 5 redundant places. [2021-03-25 08:38:11,650 INFO L241 Difference]: Finished difference. Result has 423 places, 1002 transitions, 23859 flow [2021-03-25 08:38:11,651 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21355, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=950, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=23859, PETRI_PLACES=423, PETRI_TRANSITIONS=1002} [2021-03-25 08:38:11,651 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 408 predicate places. [2021-03-25 08:38:11,651 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:11,651 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 423 places, 1002 transitions, 23859 flow [2021-03-25 08:38:11,651 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 423 places, 1002 transitions, 23859 flow [2021-03-25 08:38:11,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 423 places, 1002 transitions, 23859 flow [2021-03-25 08:38:12,168 INFO L129 PetriNetUnfolder]: 677/2130 cut-off events. [2021-03-25 08:38:12,168 INFO L130 PetriNetUnfolder]: For 149975/150161 co-relation queries the response was YES. [2021-03-25 08:38:12,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27621 conditions, 2130 events. 677/2130 cut-off events. For 149975/150161 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 19777 event pairs, 40 based on Foata normal form. 4/2125 useless extension candidates. Maximal degree in co-relation 27269. Up to 610 conditions per place. [2021-03-25 08:38:12,209 INFO L142 LiptonReduction]: Number of co-enabled transitions 542 [2021-03-25 08:38:12,310 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:38:12,310 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:38:12,310 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 659 [2021-03-25 08:38:12,310 INFO L480 AbstractCegarLoop]: Abstraction has has 423 places, 1002 transitions, 23859 flow [2021-03-25 08:38:12,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:12,310 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:12,310 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:12,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:12,511 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:12,512 INFO L82 PathProgramCache]: Analyzing trace with hash -185449007, now seen corresponding path program 1 times [2021-03-25 08:38:12,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:12,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817939864] [2021-03-25 08:38:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:12,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:12,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:12,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:12,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817939864] [2021-03-25 08:38:12,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983193999] [2021-03-25 08:38:12,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:12,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:38:12,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:12,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:12,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:12,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:12,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:12,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:12,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:12,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:12,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:12,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:12,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:12,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:12,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:12,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:12,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:12,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:12,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:12,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:12,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:12,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:12,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:12,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:12,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:12,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:12,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:12,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:12,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:12,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:12,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:38:12,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:12,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:12,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:38:12,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:12,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:12,581 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:38:12,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:38:12,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:12,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:38:12,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:38:12,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:12,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:12,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:12,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:12,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:12,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:12,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:12,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:12,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:12,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:12,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:38:12,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775674385] [2021-03-25 08:38:12,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:38:12,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:12,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:38:12,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:38:12,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 94 [2021-03-25 08:38:12,590 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 1002 transitions, 23859 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:12,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:12,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 94 [2021-03-25 08:38:12,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:13,654 INFO L129 PetriNetUnfolder]: 679/2174 cut-off events. [2021-03-25 08:38:13,654 INFO L130 PetriNetUnfolder]: For 152553/152824 co-relation queries the response was YES. [2021-03-25 08:38:13,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29554 conditions, 2174 events. 679/2174 cut-off events. For 152553/152824 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 20216 event pairs, 40 based on Foata normal form. 12/2177 useless extension candidates. Maximal degree in co-relation 29168. Up to 1740 conditions per place. [2021-03-25 08:38:13,689 INFO L132 encePairwiseOnDemand]: 61/94 looper letters, 954 selfloop transitions, 52 changer transitions 1/1011 dead transitions. [2021-03-25 08:38:13,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 1011 transitions, 26312 flow [2021-03-25 08:38:13,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 08:38:13,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 08:38:13,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 166 transitions. [2021-03-25 08:38:13,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16054158607350097 [2021-03-25 08:38:13,690 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 166 transitions. [2021-03-25 08:38:13,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 166 transitions. [2021-03-25 08:38:13,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:13,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 166 transitions. [2021-03-25 08:38:13,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:13,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:13,692 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:13,692 INFO L185 Difference]: Start difference. First operand has 423 places, 1002 transitions, 23859 flow. Second operand 11 states and 166 transitions. [2021-03-25 08:38:13,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 1011 transitions, 26312 flow [2021-03-25 08:38:14,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 1011 transitions, 25248 flow, removed 457 selfloop flow, removed 9 redundant places. [2021-03-25 08:38:14,787 INFO L241 Difference]: Finished difference. Result has 428 places, 1008 transitions, 23188 flow [2021-03-25 08:38:14,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=22797, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1002, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=23188, PETRI_PLACES=428, PETRI_TRANSITIONS=1008} [2021-03-25 08:38:14,787 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 413 predicate places. [2021-03-25 08:38:14,787 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:14,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 428 places, 1008 transitions, 23188 flow [2021-03-25 08:38:14,788 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 428 places, 1008 transitions, 23188 flow [2021-03-25 08:38:14,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 428 places, 1008 transitions, 23188 flow [2021-03-25 08:38:15,298 INFO L129 PetriNetUnfolder]: 679/2136 cut-off events. [2021-03-25 08:38:15,298 INFO L130 PetriNetUnfolder]: For 146280/146340 co-relation queries the response was YES. [2021-03-25 08:38:15,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27266 conditions, 2136 events. 679/2136 cut-off events. For 146280/146340 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 19902 event pairs, 40 based on Foata normal form. 1/2128 useless extension candidates. Maximal degree in co-relation 27016. Up to 607 conditions per place. [2021-03-25 08:38:15,346 INFO L142 LiptonReduction]: Number of co-enabled transitions 548 [2021-03-25 08:38:15,646 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:38:15,647 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:38:15,647 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 860 [2021-03-25 08:38:15,647 INFO L480 AbstractCegarLoop]: Abstraction has has 427 places, 1007 transitions, 23202 flow [2021-03-25 08:38:15,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:15,647 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:15,647 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:15,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-03-25 08:38:15,848 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:15,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:15,849 INFO L82 PathProgramCache]: Analyzing trace with hash -2064028560, now seen corresponding path program 1 times [2021-03-25 08:38:15,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:15,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466393320] [2021-03-25 08:38:15,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:15,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:15,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:15,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:15,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466393320] [2021-03-25 08:38:15,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792460140] [2021-03-25 08:38:15,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:15,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:38:15,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:15,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:15,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:15,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:15,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:15,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:15,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:15,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:15,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:15,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:15,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:15,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:15,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:15,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:15,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:15,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:38:15,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:38:15,898 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:38:15,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:15,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:15,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:15,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:15,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:15,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:15,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:15,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:15,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:15,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:15,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:15,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:15,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:15,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:15,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:38:15,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:38:15,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:15,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:38:15,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:38:15,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:15,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:15,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:15,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:15,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:15,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:15,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:15,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:15,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:15,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:15,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:38:15,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604983645] [2021-03-25 08:38:15,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:38:15,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:15,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:38:15,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:38:15,923 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 96 [2021-03-25 08:38:15,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 1007 transitions, 23202 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:15,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:15,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 96 [2021-03-25 08:38:15,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:17,180 INFO L129 PetriNetUnfolder]: 678/2149 cut-off events. [2021-03-25 08:38:17,180 INFO L130 PetriNetUnfolder]: For 148025/148515 co-relation queries the response was YES. [2021-03-25 08:38:17,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29121 conditions, 2149 events. 678/2149 cut-off events. For 148025/148515 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 20020 event pairs, 0 based on Foata normal form. 13/2153 useless extension candidates. Maximal degree in co-relation 28867. Up to 990 conditions per place. [2021-03-25 08:38:17,218 INFO L132 encePairwiseOnDemand]: 60/96 looper letters, 867 selfloop transitions, 152 changer transitions 5/1028 dead transitions. [2021-03-25 08:38:17,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1028 transitions, 25959 flow [2021-03-25 08:38:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 08:38:17,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 08:38:17,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 215 transitions. [2021-03-25 08:38:17,219 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14930555555555555 [2021-03-25 08:38:17,219 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 215 transitions. [2021-03-25 08:38:17,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 215 transitions. [2021-03-25 08:38:17,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:17,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 215 transitions. [2021-03-25 08:38:17,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 14.333333333333334) internal successors, (215), 15 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:17,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 96.0) internal successors, (1536), 16 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:17,220 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 96.0) internal successors, (1536), 16 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:17,220 INFO L185 Difference]: Start difference. First operand has 427 places, 1007 transitions, 23202 flow. Second operand 15 states and 215 transitions. [2021-03-25 08:38:17,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1028 transitions, 25959 flow [2021-03-25 08:38:18,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 1028 transitions, 25813 flow, removed 38 selfloop flow, removed 5 redundant places. [2021-03-25 08:38:18,506 INFO L241 Difference]: Finished difference. Result has 437 places, 1007 transitions, 23386 flow [2021-03-25 08:38:18,506 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=23045, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1006, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=856, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=23386, PETRI_PLACES=437, PETRI_TRANSITIONS=1007} [2021-03-25 08:38:18,507 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 422 predicate places. [2021-03-25 08:38:18,507 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:18,507 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 437 places, 1007 transitions, 23386 flow [2021-03-25 08:38:18,507 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 437 places, 1007 transitions, 23386 flow [2021-03-25 08:38:18,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 432 places, 1007 transitions, 23386 flow [2021-03-25 08:38:19,001 INFO L129 PetriNetUnfolder]: 678/2136 cut-off events. [2021-03-25 08:38:19,001 INFO L130 PetriNetUnfolder]: For 146639/146645 co-relation queries the response was YES. [2021-03-25 08:38:19,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27463 conditions, 2136 events. 678/2136 cut-off events. For 146639/146645 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 19915 event pairs, 40 based on Foata normal form. 0/2127 useless extension candidates. Maximal degree in co-relation 27215. Up to 609 conditions per place. [2021-03-25 08:38:19,047 INFO L142 LiptonReduction]: Number of co-enabled transitions 540 [2021-03-25 08:38:19,317 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:38:19,317 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:38:19,317 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 810 [2021-03-25 08:38:19,317 INFO L480 AbstractCegarLoop]: Abstraction has has 432 places, 1007 transitions, 23394 flow [2021-03-25 08:38:19,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:19,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:19,317 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:19,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:19,518 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:19,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:19,518 INFO L82 PathProgramCache]: Analyzing trace with hash -183601965, now seen corresponding path program 1 times [2021-03-25 08:38:19,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:19,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801576849] [2021-03-25 08:38:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:19,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:19,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:38:19,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:19,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801576849] [2021-03-25 08:38:19,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652706080] [2021-03-25 08:38:19,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:19,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:38:19,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:19,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:19,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:19,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:19,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:19,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:19,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:19,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:19,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:19,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:19,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:19,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:19,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:19,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:19,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:19,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:19,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:19,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:38:19,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280972243] [2021-03-25 08:38:19,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:38:19,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:19,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:38:19,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:38:19,620 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 97 [2021-03-25 08:38:19,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 1007 transitions, 23394 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:19,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:19,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 97 [2021-03-25 08:38:19,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:20,816 INFO L129 PetriNetUnfolder]: 700/2248 cut-off events. [2021-03-25 08:38:20,816 INFO L130 PetriNetUnfolder]: For 158077/158536 co-relation queries the response was YES. [2021-03-25 08:38:20,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30727 conditions, 2248 events. 700/2248 cut-off events. For 158077/158536 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 21010 event pairs, 42 based on Foata normal form. 13/2252 useless extension candidates. Maximal degree in co-relation 30367. Up to 1779 conditions per place. [2021-03-25 08:38:20,922 INFO L132 encePairwiseOnDemand]: 66/97 looper letters, 986 selfloop transitions, 58 changer transitions 1/1049 dead transitions. [2021-03-25 08:38:20,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1049 transitions, 27399 flow [2021-03-25 08:38:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:38:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:38:20,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2021-03-25 08:38:20,923 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19931271477663232 [2021-03-25 08:38:20,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 116 transitions. [2021-03-25 08:38:20,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 116 transitions. [2021-03-25 08:38:20,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:20,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 116 transitions. [2021-03-25 08:38:20,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:20,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:20,923 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:20,923 INFO L185 Difference]: Start difference. First operand has 432 places, 1007 transitions, 23394 flow. Second operand 6 states and 116 transitions. [2021-03-25 08:38:20,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1049 transitions, 27399 flow [2021-03-25 08:38:22,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1049 transitions, 27290 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-25 08:38:22,058 INFO L241 Difference]: Finished difference. Result has 435 places, 1034 transitions, 24637 flow [2021-03-25 08:38:22,059 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=23289, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1007, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=24637, PETRI_PLACES=435, PETRI_TRANSITIONS=1034} [2021-03-25 08:38:22,059 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 420 predicate places. [2021-03-25 08:38:22,059 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:22,059 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 435 places, 1034 transitions, 24637 flow [2021-03-25 08:38:22,060 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 435 places, 1034 transitions, 24637 flow [2021-03-25 08:38:22,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 435 places, 1034 transitions, 24637 flow [2021-03-25 08:38:22,585 INFO L129 PetriNetUnfolder]: 700/2207 cut-off events. [2021-03-25 08:38:22,585 INFO L130 PetriNetUnfolder]: For 157866/157938 co-relation queries the response was YES. [2021-03-25 08:38:22,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29002 conditions, 2207 events. 700/2207 cut-off events. For 157866/157938 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 20666 event pairs, 42 based on Foata normal form. 0/2198 useless extension candidates. Maximal degree in co-relation 28653. Up to 632 conditions per place. [2021-03-25 08:38:22,635 INFO L142 LiptonReduction]: Number of co-enabled transitions 568 [2021-03-25 08:38:22,943 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:38:22,943 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:38:22,943 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 884 [2021-03-25 08:38:22,943 INFO L480 AbstractCegarLoop]: Abstraction has has 435 places, 1034 transitions, 24675 flow [2021-03-25 08:38:22,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:22,943 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:22,944 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:23,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-03-25 08:38:23,144 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:23,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:23,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1233880424, now seen corresponding path program 2 times [2021-03-25 08:38:23,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:23,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273209353] [2021-03-25 08:38:23,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:23,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:23,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:23,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:23,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:23,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:23,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:23,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273209353] [2021-03-25 08:38:23,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761774465] [2021-03-25 08:38:23,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:23,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:38:23,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:38:23,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:38:23,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:23,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:23,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:23,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:23,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:23,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:23,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:23,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:23,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:23,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:23,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:23,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:23,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:23,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:23,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:23,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:38:23,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:38:23,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:23,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:23,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:23,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:23,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:23,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:23,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:23,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:23,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:23,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:23,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:23,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:23,209 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:38:23,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:23,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:23,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:38:23,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:23,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:23,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:23,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:23,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:23,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:23,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:23,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:23,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:38:23,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:23,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:23,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:38:23,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:23,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:23,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:23,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:23,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:38:23,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:38:23,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:23,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:38:23,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:23,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:23,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:23,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:23,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:23,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:23,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:23,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:23,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:23,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:23,252 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:23,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:23,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 08:38:23,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341389772] [2021-03-25 08:38:23,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:38:23,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:23,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:38:23,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:38:23,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 98 [2021-03-25 08:38:23,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 1034 transitions, 24675 flow. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:23,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:23,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 98 [2021-03-25 08:38:23,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:25,095 INFO L129 PetriNetUnfolder]: 766/2520 cut-off events. [2021-03-25 08:38:25,096 INFO L130 PetriNetUnfolder]: For 199291/199326 co-relation queries the response was YES. [2021-03-25 08:38:25,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36303 conditions, 2520 events. 766/2520 cut-off events. For 199291/199326 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 24512 event pairs, 0 based on Foata normal form. 34/2545 useless extension candidates. Maximal degree in co-relation 35940. Up to 762 conditions per place. [2021-03-25 08:38:25,140 INFO L132 encePairwiseOnDemand]: 60/98 looper letters, 541 selfloop transitions, 674 changer transitions 15/1234 dead transitions. [2021-03-25 08:38:25,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1234 transitions, 34495 flow [2021-03-25 08:38:25,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-25 08:38:25,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-25 08:38:25,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 429 transitions. [2021-03-25 08:38:25,141 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.141211323238973 [2021-03-25 08:38:25,141 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 429 transitions. [2021-03-25 08:38:25,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 429 transitions. [2021-03-25 08:38:25,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:25,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 429 transitions. [2021-03-25 08:38:25,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 13.838709677419354) internal successors, (429), 31 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:25,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 98.0) internal successors, (3136), 32 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:25,145 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 98.0) internal successors, (3136), 32 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:25,145 INFO L185 Difference]: Start difference. First operand has 435 places, 1034 transitions, 24675 flow. Second operand 31 states and 429 transitions. [2021-03-25 08:38:25,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1234 transitions, 34495 flow [2021-03-25 08:38:26,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 1234 transitions, 33837 flow, removed 314 selfloop flow, removed 1 redundant places. [2021-03-25 08:38:26,808 INFO L241 Difference]: Finished difference. Result has 469 places, 1196 transitions, 32576 flow [2021-03-25 08:38:26,809 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=23744, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1019, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=503, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=32576, PETRI_PLACES=469, PETRI_TRANSITIONS=1196} [2021-03-25 08:38:26,809 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 454 predicate places. [2021-03-25 08:38:26,809 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:26,809 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 469 places, 1196 transitions, 32576 flow [2021-03-25 08:38:26,809 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 469 places, 1196 transitions, 32576 flow [2021-03-25 08:38:26,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 468 places, 1196 transitions, 32576 flow [2021-03-25 08:38:27,523 INFO L129 PetriNetUnfolder]: 761/2489 cut-off events. [2021-03-25 08:38:27,523 INFO L130 PetriNetUnfolder]: For 199394/199410 co-relation queries the response was YES. [2021-03-25 08:38:27,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35054 conditions, 2489 events. 761/2489 cut-off events. For 199394/199410 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 24158 event pairs, 2 based on Foata normal form. 0/2480 useless extension candidates. Maximal degree in co-relation 34690. Up to 750 conditions per place. [2021-03-25 08:38:27,584 INFO L142 LiptonReduction]: Number of co-enabled transitions 568 [2021-03-25 08:38:27,998 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:38:27,998 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:38:27,998 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1189 [2021-03-25 08:38:27,998 INFO L480 AbstractCegarLoop]: Abstraction has has 468 places, 1196 transitions, 32592 flow [2021-03-25 08:38:27,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:27,999 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:27,999 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:28,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-03-25 08:38:28,199 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:28,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:28,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1856573145, now seen corresponding path program 1 times [2021-03-25 08:38:28,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:28,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364401531] [2021-03-25 08:38:28,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:28,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:28,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:28,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:28,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364401531] [2021-03-25 08:38:28,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786591654] [2021-03-25 08:38:28,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:28,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:38:28,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:28,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:28,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:28,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:28,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:28,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:28,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:28,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:28,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:28,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:28,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:28,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:28,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:28,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:28,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:28,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:28,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:28,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:28,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:28,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:28,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:28,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:28,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:28,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:28,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:28,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:28,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:28,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:28,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:38:28,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:28,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:28,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:38:28,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:28,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:28,286 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:38:28,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:38:28,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:28,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:38:28,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:38:28,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:28,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:28,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:28,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:28,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:28,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:28,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:28,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:28,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:28,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:28,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:28,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:38:28,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408460014] [2021-03-25 08:38:28,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:38:28,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:28,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:38:28,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:38:28,293 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 99 [2021-03-25 08:38:28,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 1196 transitions, 32592 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:28,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:28,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 99 [2021-03-25 08:38:28,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:29,780 INFO L129 PetriNetUnfolder]: 763/2490 cut-off events. [2021-03-25 08:38:29,780 INFO L130 PetriNetUnfolder]: For 203262/203694 co-relation queries the response was YES. [2021-03-25 08:38:29,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37238 conditions, 2490 events. 763/2490 cut-off events. For 203262/203694 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 24013 event pairs, 2 based on Foata normal form. 38/2519 useless extension candidates. Maximal degree in co-relation 36860. Up to 2016 conditions per place. [2021-03-25 08:38:29,820 INFO L132 encePairwiseOnDemand]: 66/99 looper letters, 1146 selfloop transitions, 54 changer transitions 1/1205 dead transitions. [2021-03-25 08:38:29,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 1205 transitions, 35457 flow [2021-03-25 08:38:29,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 08:38:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 08:38:29,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 169 transitions. [2021-03-25 08:38:29,821 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.155188246097337 [2021-03-25 08:38:29,821 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 169 transitions. [2021-03-25 08:38:29,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 169 transitions. [2021-03-25 08:38:29,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:29,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 169 transitions. [2021-03-25 08:38:29,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 11 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:29,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:29,822 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:29,822 INFO L185 Difference]: Start difference. First operand has 468 places, 1196 transitions, 32592 flow. Second operand 11 states and 169 transitions. [2021-03-25 08:38:29,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 1205 transitions, 35457 flow [2021-03-25 08:38:31,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 1205 transitions, 31479 flow, removed 1896 selfloop flow, removed 9 redundant places. [2021-03-25 08:38:31,733 INFO L241 Difference]: Finished difference. Result has 473 places, 1202 transitions, 29047 flow [2021-03-25 08:38:31,734 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=28636, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=29047, PETRI_PLACES=473, PETRI_TRANSITIONS=1202} [2021-03-25 08:38:31,734 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 458 predicate places. [2021-03-25 08:38:31,734 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:31,734 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 473 places, 1202 transitions, 29047 flow [2021-03-25 08:38:31,734 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 473 places, 1202 transitions, 29047 flow [2021-03-25 08:38:31,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 473 places, 1202 transitions, 29047 flow [2021-03-25 08:38:32,319 INFO L129 PetriNetUnfolder]: 763/2506 cut-off events. [2021-03-25 08:38:32,319 INFO L130 PetriNetUnfolder]: For 100149/100216 co-relation queries the response was YES. [2021-03-25 08:38:32,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28588 conditions, 2506 events. 763/2506 cut-off events. For 100149/100216 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 24447 event pairs, 2 based on Foata normal form. 0/2497 useless extension candidates. Maximal degree in co-relation 28325. Up to 696 conditions per place. [2021-03-25 08:38:32,374 INFO L142 LiptonReduction]: Number of co-enabled transitions 574 [2021-03-25 08:38:32,766 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:38:32,766 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:38:32,766 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1032 [2021-03-25 08:38:32,766 INFO L480 AbstractCegarLoop]: Abstraction has has 472 places, 1201 transitions, 29063 flow [2021-03-25 08:38:32,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:32,766 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:32,766 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:32,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-03-25 08:38:32,967 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:32,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:32,967 INFO L82 PathProgramCache]: Analyzing trace with hash 2143675323, now seen corresponding path program 1 times [2021-03-25 08:38:32,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:32,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265539472] [2021-03-25 08:38:32,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:32,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:32,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:32,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:32,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:32,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:32,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:32,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:32,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:32,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:32,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:32,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:32,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265539472] [2021-03-25 08:38:32,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72483140] [2021-03-25 08:38:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:32,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:38:32,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:32,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:32,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:32,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:32,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:32,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:32,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:32,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:32,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:33,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:33,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:33,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:33,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:33,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:33,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:33,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:33,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:33,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:33,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:33,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:38:33,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:38:33,012 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:38:33,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:33,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:33,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:33,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:33,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:33,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:33,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:33,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:33,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:33,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:33,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:33,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:33,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:33,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:33,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:33,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:33,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:33,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:33,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:33,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:38:33,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:38:33,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:33,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:38:33,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:38:33,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:33,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:33,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:33,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:38:33,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102997359] [2021-03-25 08:38:33,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:38:33,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:33,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:38:33,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:38:33,038 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 101 [2021-03-25 08:38:33,038 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 1201 transitions, 29063 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:33,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:33,038 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 101 [2021-03-25 08:38:33,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:34,650 INFO L129 PetriNetUnfolder]: 761/2488 cut-off events. [2021-03-25 08:38:34,650 INFO L130 PetriNetUnfolder]: For 100435/100573 co-relation queries the response was YES. [2021-03-25 08:38:34,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30630 conditions, 2488 events. 761/2488 cut-off events. For 100435/100573 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 24005 event pairs, 0 based on Foata normal form. 11/2490 useless extension candidates. Maximal degree in co-relation 30363. Up to 1094 conditions per place. [2021-03-25 08:38:34,698 INFO L132 encePairwiseOnDemand]: 62/101 looper letters, 999 selfloop transitions, 208 changer transitions 3/1214 dead transitions. [2021-03-25 08:38:34,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1214 transitions, 31864 flow [2021-03-25 08:38:34,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 08:38:34,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 08:38:34,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 218 transitions. [2021-03-25 08:38:34,699 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1438943894389439 [2021-03-25 08:38:34,699 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 218 transitions. [2021-03-25 08:38:34,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 218 transitions. [2021-03-25 08:38:34,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:34,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 218 transitions. [2021-03-25 08:38:34,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 14.533333333333333) internal successors, (218), 15 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:34,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 101.0) internal successors, (1616), 16 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:34,701 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 101.0) internal successors, (1616), 16 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:34,701 INFO L185 Difference]: Start difference. First operand has 472 places, 1201 transitions, 29063 flow. Second operand 15 states and 218 transitions. [2021-03-25 08:38:34,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1214 transitions, 31864 flow [2021-03-25 08:38:35,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 1214 transitions, 31440 flow, removed 43 selfloop flow, removed 6 redundant places. [2021-03-25 08:38:35,865 INFO L241 Difference]: Finished difference. Result has 481 places, 1199 transitions, 29000 flow [2021-03-25 08:38:35,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=28629, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=992, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=29000, PETRI_PLACES=481, PETRI_TRANSITIONS=1199} [2021-03-25 08:38:35,865 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 466 predicate places. [2021-03-25 08:38:35,865 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:35,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 481 places, 1199 transitions, 29000 flow [2021-03-25 08:38:35,866 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 481 places, 1199 transitions, 29000 flow [2021-03-25 08:38:35,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 476 places, 1199 transitions, 29000 flow [2021-03-25 08:38:36,447 INFO L129 PetriNetUnfolder]: 761/2492 cut-off events. [2021-03-25 08:38:36,447 INFO L130 PetriNetUnfolder]: For 97990/98055 co-relation queries the response was YES. [2021-03-25 08:38:36,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28626 conditions, 2492 events. 761/2492 cut-off events. For 97990/98055 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 24254 event pairs, 2 based on Foata normal form. 0/2483 useless extension candidates. Maximal degree in co-relation 28368. Up to 694 conditions per place. [2021-03-25 08:38:36,500 INFO L142 LiptonReduction]: Number of co-enabled transitions 566 [2021-03-25 08:38:36,650 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:38:36,650 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:38:36,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 785 [2021-03-25 08:38:36,650 INFO L480 AbstractCegarLoop]: Abstraction has has 476 places, 1199 transitions, 29000 flow [2021-03-25 08:38:36,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:36,650 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:36,650 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:36,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:36,863 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:36,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:36,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1861190750, now seen corresponding path program 1 times [2021-03-25 08:38:36,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:36,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955902740] [2021-03-25 08:38:36,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:36,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:36,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,881 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:38:36,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:36,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955902740] [2021-03-25 08:38:36,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680306108] [2021-03-25 08:38:36,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:36,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:38:36,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:36,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:36,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:36,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:36,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:36,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:36,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:36,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:36,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:36,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:36,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:36,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:36,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:36,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:36,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:36,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:36,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:36,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:36,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:36,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:36,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:36,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:38:36,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30669901] [2021-03-25 08:38:36,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:38:36,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:36,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:38:36,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:38:36,966 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 101 [2021-03-25 08:38:36,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 1199 transitions, 29000 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:36,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:36,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 101 [2021-03-25 08:38:36,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:38,400 INFO L129 PetriNetUnfolder]: 783/2555 cut-off events. [2021-03-25 08:38:38,400 INFO L130 PetriNetUnfolder]: For 105515/105523 co-relation queries the response was YES. [2021-03-25 08:38:38,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32080 conditions, 2555 events. 783/2555 cut-off events. For 105515/105523 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 24772 event pairs, 2 based on Foata normal form. 9/2555 useless extension candidates. Maximal degree in co-relation 31705. Up to 2052 conditions per place. [2021-03-25 08:38:38,441 INFO L132 encePairwiseOnDemand]: 69/101 looper letters, 1179 selfloop transitions, 59 changer transitions 1/1243 dead transitions. [2021-03-25 08:38:38,441 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 1243 transitions, 33489 flow [2021-03-25 08:38:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:38:38,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:38:38,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2021-03-25 08:38:38,442 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19471947194719472 [2021-03-25 08:38:38,442 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 118 transitions. [2021-03-25 08:38:38,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 118 transitions. [2021-03-25 08:38:38,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:38,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 118 transitions. [2021-03-25 08:38:38,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:38,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:38,442 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:38,443 INFO L185 Difference]: Start difference. First operand has 476 places, 1199 transitions, 29000 flow. Second operand 6 states and 118 transitions. [2021-03-25 08:38:38,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 1243 transitions, 33489 flow [2021-03-25 08:38:39,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 1243 transitions, 33154 flow, removed 15 selfloop flow, removed 9 redundant places. [2021-03-25 08:38:39,462 INFO L241 Difference]: Finished difference. Result has 475 places, 1226 transitions, 30089 flow [2021-03-25 08:38:39,462 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=28672, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=30089, PETRI_PLACES=475, PETRI_TRANSITIONS=1226} [2021-03-25 08:38:39,462 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 460 predicate places. [2021-03-25 08:38:39,463 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:39,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 475 places, 1226 transitions, 30089 flow [2021-03-25 08:38:39,463 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 475 places, 1226 transitions, 30089 flow [2021-03-25 08:38:39,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 475 places, 1226 transitions, 30089 flow [2021-03-25 08:38:40,102 INFO L129 PetriNetUnfolder]: 783/2553 cut-off events. [2021-03-25 08:38:40,102 INFO L130 PetriNetUnfolder]: For 102455/102471 co-relation queries the response was YES. [2021-03-25 08:38:40,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30019 conditions, 2553 events. 783/2553 cut-off events. For 102455/102471 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 24859 event pairs, 2 based on Foata normal form. 0/2544 useless extension candidates. Maximal degree in co-relation 29657. Up to 717 conditions per place. [2021-03-25 08:38:40,156 INFO L142 LiptonReduction]: Number of co-enabled transitions 594 [2021-03-25 08:38:40,582 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:38:40,582 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:38:40,582 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1119 [2021-03-25 08:38:40,582 INFO L480 AbstractCegarLoop]: Abstraction has has 474 places, 1225 transitions, 30113 flow [2021-03-25 08:38:40,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:40,583 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:40,583 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:40,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-03-25 08:38:40,784 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:40,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:40,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1861562898, now seen corresponding path program 1 times [2021-03-25 08:38:40,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:40,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253153914] [2021-03-25 08:38:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:40,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:40,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:40,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:40,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:40,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:40,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:40,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253153914] [2021-03-25 08:38:40,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414780082] [2021-03-25 08:38:40,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:40,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:38:40,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:40,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:40,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:40,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:40,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:40,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:40,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:40,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:40,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:40,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:40,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:40,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:40,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:40,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:40,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:40,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:38:40,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:38:40,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:40,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:40,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:40,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:40,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:40,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:40,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:40,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:40,843 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:38:40,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:40,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:40,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:40,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:40,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:40,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:40,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:40,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:40,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:40,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:40,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:40,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:40,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:40,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:40,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:40,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:40,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:40,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:40,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:40,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:38:40,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:38:40,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:40,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:38:40,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:38:40,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:40,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:40,881 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:40,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:40,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 08:38:40,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685533078] [2021-03-25 08:38:40,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:38:40,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:40,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:38:40,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:38:40,882 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 103 [2021-03-25 08:38:40,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 1225 transitions, 30113 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:40,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:40,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 103 [2021-03-25 08:38:40,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:42,710 INFO L129 PetriNetUnfolder]: 806/2694 cut-off events. [2021-03-25 08:38:42,711 INFO L130 PetriNetUnfolder]: For 108663/109021 co-relation queries the response was YES. [2021-03-25 08:38:42,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33532 conditions, 2694 events. 806/2694 cut-off events. For 108663/109021 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 26558 event pairs, 0 based on Foata normal form. 38/2723 useless extension candidates. Maximal degree in co-relation 33156. Up to 763 conditions per place. [2021-03-25 08:38:42,753 INFO L132 encePairwiseOnDemand]: 63/103 looper letters, 623 selfloop transitions, 715 changer transitions 1/1343 dead transitions. [2021-03-25 08:38:42,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 1343 transitions, 36396 flow [2021-03-25 08:38:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-25 08:38:42,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-25 08:38:42,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 284 transitions. [2021-03-25 08:38:42,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1378640776699029 [2021-03-25 08:38:42,756 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 284 transitions. [2021-03-25 08:38:42,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 284 transitions. [2021-03-25 08:38:42,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:42,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 284 transitions. [2021-03-25 08:38:42,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 14.2) internal successors, (284), 20 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:42,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 103.0) internal successors, (2163), 21 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:42,758 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 103.0) internal successors, (2163), 21 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:42,758 INFO L185 Difference]: Start difference. First operand has 474 places, 1225 transitions, 30113 flow. Second operand 20 states and 284 transitions. [2021-03-25 08:38:42,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 1343 transitions, 36396 flow [2021-03-25 08:38:43,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 1343 transitions, 35753 flow, removed 306 selfloop flow, removed 2 redundant places. [2021-03-25 08:38:43,898 INFO L241 Difference]: Finished difference. Result has 497 places, 1287 transitions, 33984 flow [2021-03-25 08:38:43,899 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=29414, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=652, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=33984, PETRI_PLACES=497, PETRI_TRANSITIONS=1287} [2021-03-25 08:38:43,899 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 482 predicate places. [2021-03-25 08:38:43,899 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:43,899 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 1287 transitions, 33984 flow [2021-03-25 08:38:43,899 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 1287 transitions, 33984 flow [2021-03-25 08:38:43,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 497 places, 1287 transitions, 33984 flow [2021-03-25 08:38:44,611 INFO L129 PetriNetUnfolder]: 806/2692 cut-off events. [2021-03-25 08:38:44,611 INFO L130 PetriNetUnfolder]: For 110462/110520 co-relation queries the response was YES. [2021-03-25 08:38:44,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32778 conditions, 2692 events. 806/2692 cut-off events. For 110462/110520 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 26668 event pairs, 2 based on Foata normal form. 0/2683 useless extension candidates. Maximal degree in co-relation 32400. Up to 763 conditions per place. [2021-03-25 08:38:44,677 INFO L142 LiptonReduction]: Number of co-enabled transitions 616 [2021-03-25 08:38:45,122 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:38:45,122 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:38:45,122 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1223 [2021-03-25 08:38:45,122 INFO L480 AbstractCegarLoop]: Abstraction has has 497 places, 1287 transitions, 33990 flow [2021-03-25 08:38:45,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:45,122 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:45,122 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:45,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,70 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:45,323 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:45,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:45,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1073659806, now seen corresponding path program 1 times [2021-03-25 08:38:45,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:45,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888115028] [2021-03-25 08:38:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:45,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:45,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:45,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:45,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:45,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888115028] [2021-03-25 08:38:45,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350197114] [2021-03-25 08:38:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:45,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:38:45,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:45,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:45,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:45,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:45,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:45,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:45,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:45,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:45,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:45,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:45,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:45,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:45,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:45,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:45,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:45,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:45,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:45,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:45,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:45,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:45,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:45,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:45,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:45,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:45,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:45,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:45,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:45,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:45,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:38:45,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:45,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:38:45,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:38:45,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:45,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:45,410 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:38:45,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:38:45,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:45,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:38:45,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:38:45,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:45,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:45,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:45,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:45,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:45,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:45,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:45,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:45,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:45,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:45,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:38:45,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378209356] [2021-03-25 08:38:45,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:38:45,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:45,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:38:45,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:38:45,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 104 [2021-03-25 08:38:45,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 1287 transitions, 33990 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:45,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:45,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 104 [2021-03-25 08:38:45,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:47,174 INFO L129 PetriNetUnfolder]: 808/2688 cut-off events. [2021-03-25 08:38:47,175 INFO L130 PetriNetUnfolder]: For 114648/115260 co-relation queries the response was YES. [2021-03-25 08:38:47,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35114 conditions, 2688 events. 808/2688 cut-off events. For 114648/115260 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 26382 event pairs, 2 based on Foata normal form. 42/2721 useless extension candidates. Maximal degree in co-relation 34723. Up to 2174 conditions per place. [2021-03-25 08:38:47,225 INFO L132 encePairwiseOnDemand]: 70/104 looper letters, 1237 selfloop transitions, 53 changer transitions 0/1294 dead transitions. [2021-03-25 08:38:47,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 1294 transitions, 36931 flow [2021-03-25 08:38:47,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:38:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:38:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 147 transitions. [2021-03-25 08:38:47,226 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15705128205128205 [2021-03-25 08:38:47,226 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 147 transitions. [2021-03-25 08:38:47,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 147 transitions. [2021-03-25 08:38:47,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:47,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 147 transitions. [2021-03-25 08:38:47,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.333333333333332) internal successors, (147), 9 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:47,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:47,227 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:47,227 INFO L185 Difference]: Start difference. First operand has 497 places, 1287 transitions, 33990 flow. Second operand 9 states and 147 transitions. [2021-03-25 08:38:47,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 1294 transitions, 36931 flow [2021-03-25 08:38:48,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 1294 transitions, 36182 flow, removed 325 selfloop flow, removed 11 redundant places. [2021-03-25 08:38:48,872 INFO L241 Difference]: Finished difference. Result has 498 places, 1292 transitions, 33648 flow [2021-03-25 08:38:48,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=33247, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=33648, PETRI_PLACES=498, PETRI_TRANSITIONS=1292} [2021-03-25 08:38:48,873 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 483 predicate places. [2021-03-25 08:38:48,873 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:48,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 498 places, 1292 transitions, 33648 flow [2021-03-25 08:38:48,873 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 498 places, 1292 transitions, 33648 flow [2021-03-25 08:38:48,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 498 places, 1292 transitions, 33648 flow [2021-03-25 08:38:49,622 INFO L129 PetriNetUnfolder]: 808/2692 cut-off events. [2021-03-25 08:38:49,622 INFO L130 PetriNetUnfolder]: For 93142/93189 co-relation queries the response was YES. [2021-03-25 08:38:49,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31522 conditions, 2692 events. 808/2692 cut-off events. For 93142/93189 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 26647 event pairs, 2 based on Foata normal form. 0/2683 useless extension candidates. Maximal degree in co-relation 31248. Up to 732 conditions per place. [2021-03-25 08:38:49,684 INFO L142 LiptonReduction]: Number of co-enabled transitions 620 [2021-03-25 08:38:49,852 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:38:49,852 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:38:49,852 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 979 [2021-03-25 08:38:49,853 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 1292 transitions, 33648 flow [2021-03-25 08:38:49,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:49,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:49,853 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:50,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2021-03-25 08:38:50,053 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:50,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:50,054 INFO L82 PathProgramCache]: Analyzing trace with hash -2028624990, now seen corresponding path program 3 times [2021-03-25 08:38:50,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:50,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446033306] [2021-03-25 08:38:50,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:50,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:50,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:50,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:50,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:50,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446033306] [2021-03-25 08:38:50,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786499977] [2021-03-25 08:38:50,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:50,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-25 08:38:50,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:38:50,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:38:50,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:50,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:50,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:50,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:50,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:50,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:50,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:50,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:38:50,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:50,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:50,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:50,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:50,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:50,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:50,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:50,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:50,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:50,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:50,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:50,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:38:50,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:50,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:38:50,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:50,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:38:50,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:38:50,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:50,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:38:50,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:38:50,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:50,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:50,123 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:38:50,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:38:50,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:50,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:38:50,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:38:50,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:50,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:50,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:50,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:38:50,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:50,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:38:50,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:38:50,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:50,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:50,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:38:50,150 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:50,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:50,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 08:38:50,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336267152] [2021-03-25 08:38:50,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:38:50,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:50,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:38:50,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:38:50,151 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 104 [2021-03-25 08:38:50,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 1292 transitions, 33648 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:50,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:50,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 104 [2021-03-25 08:38:50,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:51,823 INFO L129 PetriNetUnfolder]: 807/2669 cut-off events. [2021-03-25 08:38:51,823 INFO L130 PetriNetUnfolder]: For 95880/96697 co-relation queries the response was YES. [2021-03-25 08:38:51,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33566 conditions, 2669 events. 807/2669 cut-off events. For 95880/96697 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 26071 event pairs, 0 based on Foata normal form. 41/2701 useless extension candidates. Maximal degree in co-relation 33288. Up to 1229 conditions per place. [2021-03-25 08:38:51,870 INFO L132 encePairwiseOnDemand]: 70/104 looper letters, 1095 selfloop transitions, 194 changer transitions 3/1296 dead transitions. [2021-03-25 08:38:51,870 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 1296 transitions, 36563 flow [2021-03-25 08:38:51,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 08:38:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 08:38:51,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 195 transitions. [2021-03-25 08:38:51,871 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14423076923076922 [2021-03-25 08:38:51,871 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 195 transitions. [2021-03-25 08:38:51,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 195 transitions. [2021-03-25 08:38:51,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:51,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 195 transitions. [2021-03-25 08:38:51,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 15.0) internal successors, (195), 13 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:51,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 104.0) internal successors, (1456), 14 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:51,873 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 104.0) internal successors, (1456), 14 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:51,873 INFO L185 Difference]: Start difference. First operand has 498 places, 1292 transitions, 33648 flow. Second operand 13 states and 195 transitions. [2021-03-25 08:38:51,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 1296 transitions, 36563 flow [2021-03-25 08:38:53,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 1296 transitions, 36212 flow, removed 117 selfloop flow, removed 5 redundant places. [2021-03-25 08:38:53,109 INFO L241 Difference]: Finished difference. Result has 506 places, 1286 transitions, 33588 flow [2021-03-25 08:38:53,110 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=33182, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1092, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=33588, PETRI_PLACES=506, PETRI_TRANSITIONS=1286} [2021-03-25 08:38:53,110 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 491 predicate places. [2021-03-25 08:38:53,110 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:53,110 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 506 places, 1286 transitions, 33588 flow [2021-03-25 08:38:53,110 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 506 places, 1286 transitions, 33588 flow [2021-03-25 08:38:53,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 505 places, 1286 transitions, 33588 flow [2021-03-25 08:38:53,808 INFO L129 PetriNetUnfolder]: 807/2681 cut-off events. [2021-03-25 08:38:53,808 INFO L130 PetriNetUnfolder]: For 95199/95211 co-relation queries the response was YES. [2021-03-25 08:38:53,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31490 conditions, 2681 events. 807/2681 cut-off events. For 95199/95211 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 26450 event pairs, 2 based on Foata normal form. 0/2672 useless extension candidates. Maximal degree in co-relation 31217. Up to 725 conditions per place. [2021-03-25 08:38:53,873 INFO L142 LiptonReduction]: Number of co-enabled transitions 620 [2021-03-25 08:38:54,290 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:38:54,290 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:38:54,290 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1180 [2021-03-25 08:38:54,290 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 1286 transitions, 33604 flow [2021-03-25 08:38:54,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:54,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:54,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:54,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:54,491 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:54,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:54,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1227777482, now seen corresponding path program 1 times [2021-03-25 08:38:54,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:54,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816624429] [2021-03-25 08:38:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:54,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:54,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,519 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:38:54,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:54,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816624429] [2021-03-25 08:38:54,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787327878] [2021-03-25 08:38:54,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:54,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:38:54,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:54,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:54,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:54,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:54,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:54,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:54,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:54,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:54,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:54,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:54,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:54,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:54,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:54,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:54,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:54,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:54,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:54,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:54,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:54,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:54,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:54,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:38:54,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:54,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:38:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:54,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:54,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:38:54,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152400968] [2021-03-25 08:38:54,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:38:54,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:54,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:38:54,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:38:54,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 106 [2021-03-25 08:38:54,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 1286 transitions, 33604 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:54,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:54,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 106 [2021-03-25 08:38:54,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:38:56,559 INFO L129 PetriNetUnfolder]: 829/2732 cut-off events. [2021-03-25 08:38:56,560 INFO L130 PetriNetUnfolder]: For 103159/103159 co-relation queries the response was YES. [2021-03-25 08:38:56,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35142 conditions, 2732 events. 829/2732 cut-off events. For 103159/103159 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 26810 event pairs, 2 based on Foata normal form. 1/2724 useless extension candidates. Maximal degree in co-relation 34747. Up to 2191 conditions per place. [2021-03-25 08:38:56,604 INFO L132 encePairwiseOnDemand]: 73/106 looper letters, 1260 selfloop transitions, 66 changer transitions 1/1331 dead transitions. [2021-03-25 08:38:56,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 1331 transitions, 38374 flow [2021-03-25 08:38:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:38:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:38:56,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 145 transitions. [2021-03-25 08:38:56,605 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17099056603773585 [2021-03-25 08:38:56,605 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 145 transitions. [2021-03-25 08:38:56,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 145 transitions. [2021-03-25 08:38:56,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:38:56,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 145 transitions. [2021-03-25 08:38:56,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.125) internal successors, (145), 8 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:56,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 106.0) internal successors, (954), 9 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:56,607 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 106.0) internal successors, (954), 9 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:56,607 INFO L185 Difference]: Start difference. First operand has 505 places, 1286 transitions, 33604 flow. Second operand 8 states and 145 transitions. [2021-03-25 08:38:56,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 1331 transitions, 38374 flow [2021-03-25 08:38:57,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 1331 transitions, 37948 flow, removed 19 selfloop flow, removed 11 redundant places. [2021-03-25 08:38:57,899 INFO L241 Difference]: Finished difference. Result has 505 places, 1314 transitions, 34681 flow [2021-03-25 08:38:57,899 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=33194, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34681, PETRI_PLACES=505, PETRI_TRANSITIONS=1314} [2021-03-25 08:38:57,899 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 490 predicate places. [2021-03-25 08:38:57,899 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:38:57,899 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 505 places, 1314 transitions, 34681 flow [2021-03-25 08:38:57,900 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 505 places, 1314 transitions, 34681 flow [2021-03-25 08:38:57,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 505 places, 1314 transitions, 34681 flow [2021-03-25 08:38:58,633 INFO L129 PetriNetUnfolder]: 829/2749 cut-off events. [2021-03-25 08:38:58,633 INFO L130 PetriNetUnfolder]: For 101257/101381 co-relation queries the response was YES. [2021-03-25 08:38:58,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32938 conditions, 2749 events. 829/2749 cut-off events. For 101257/101381 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 27138 event pairs, 2 based on Foata normal form. 0/2739 useless extension candidates. Maximal degree in co-relation 32649. Up to 748 conditions per place. [2021-03-25 08:38:58,702 INFO L142 LiptonReduction]: Number of co-enabled transitions 650 [2021-03-25 08:38:59,630 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:38:59,631 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:38:59,631 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1732 [2021-03-25 08:38:59,631 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 1311 transitions, 34698 flow [2021-03-25 08:38:59,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:59,631 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:38:59,631 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:38:59,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:59,834 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:38:59,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:38:59,835 INFO L82 PathProgramCache]: Analyzing trace with hash -234085275, now seen corresponding path program 11 times [2021-03-25 08:38:59,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:38:59,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372021122] [2021-03-25 08:38:59,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:38:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:38:59,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:59,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:59,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:38:59,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:59,859 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:38:59,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:38:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 08:38:59,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372021122] [2021-03-25 08:38:59,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485449679] [2021-03-25 08:38:59,861 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:38:59,878 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-25 08:38:59,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:38:59,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:38:59,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:38:59,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:59,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:59,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:59,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:59,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:59,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:59,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:59,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:38:59,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:59,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:59,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:59,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:38:59,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:59,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:59,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:59,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:38:59,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:59,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:59,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:59,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:38:59,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:38:59,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:38:59,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:38:59,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:38:59,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:38:59,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:38:59,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:38:59,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:38:59,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 6 [2021-03-25 08:38:59,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274035100] [2021-03-25 08:38:59,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:38:59,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:38:59,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:38:59,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:38:59,958 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 110 [2021-03-25 08:38:59,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1311 transitions, 34698 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:38:59,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:38:59,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 110 [2021-03-25 08:38:59,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:02,227 INFO L129 PetriNetUnfolder]: 848/2835 cut-off events. [2021-03-25 08:39:02,227 INFO L130 PetriNetUnfolder]: For 104028/104489 co-relation queries the response was YES. [2021-03-25 08:39:02,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36073 conditions, 2835 events. 848/2835 cut-off events. For 104028/104489 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 28250 event pairs, 2 based on Foata normal form. 35/2860 useless extension candidates. Maximal degree in co-relation 35744. Up to 2209 conditions per place. [2021-03-25 08:39:02,279 INFO L132 encePairwiseOnDemand]: 75/110 looper letters, 1277 selfloop transitions, 82 changer transitions 7/1370 dead transitions. [2021-03-25 08:39:02,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 1370 transitions, 38721 flow [2021-03-25 08:39:02,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:39:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:39:02,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-25 08:39:02,280 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1715909090909091 [2021-03-25 08:39:02,280 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-25 08:39:02,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-25 08:39:02,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:02,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-25 08:39:02,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:02,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:02,281 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:02,281 INFO L185 Difference]: Start difference. First operand has 502 places, 1311 transitions, 34698 flow. Second operand 8 states and 151 transitions. [2021-03-25 08:39:02,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 1370 transitions, 38721 flow [2021-03-25 08:39:03,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 1370 transitions, 37970 flow, removed 355 selfloop flow, removed 5 redundant places. [2021-03-25 08:39:03,656 INFO L241 Difference]: Finished difference. Result has 508 places, 1339 transitions, 34756 flow [2021-03-25 08:39:03,657 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=33953, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34756, PETRI_PLACES=508, PETRI_TRANSITIONS=1339} [2021-03-25 08:39:03,657 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 493 predicate places. [2021-03-25 08:39:03,657 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:03,657 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 508 places, 1339 transitions, 34756 flow [2021-03-25 08:39:03,657 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 508 places, 1339 transitions, 34756 flow [2021-03-25 08:39:03,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 1339 transitions, 34756 flow [2021-03-25 08:39:04,414 INFO L129 PetriNetUnfolder]: 848/2850 cut-off events. [2021-03-25 08:39:04,414 INFO L130 PetriNetUnfolder]: For 100533/100569 co-relation queries the response was YES. [2021-03-25 08:39:04,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33659 conditions, 2850 events. 848/2850 cut-off events. For 100533/100569 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 28574 event pairs, 2 based on Foata normal form. 0/2840 useless extension candidates. Maximal degree in co-relation 33267. Up to 778 conditions per place. [2021-03-25 08:39:04,485 INFO L142 LiptonReduction]: Number of co-enabled transitions 658 [2021-03-25 08:39:04,668 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:39:04,668 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:39:04,668 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1011 [2021-03-25 08:39:04,668 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 1339 transitions, 34756 flow [2021-03-25 08:39:04,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:04,668 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:04,668 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:04,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:04,869 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:04,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:04,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1551162524, now seen corresponding path program 1 times [2021-03-25 08:39:04,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:04,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372996451] [2021-03-25 08:39:04,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:04,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:04,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:04,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:04,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:04,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372996451] [2021-03-25 08:39:04,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121173556] [2021-03-25 08:39:04,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:04,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:39:04,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:04,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:04,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:04,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:04,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:04,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:04,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:04,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:04,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:04,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:04,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:04,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:04,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:04,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:04,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:04,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:39:04,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:39:04,909 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:39:04,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:04,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:04,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:04,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:04,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:04,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:04,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:04,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:04,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:04,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:04,913 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:39:04,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:04,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:04,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:04,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:39:04,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710841386] [2021-03-25 08:39:04,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:39:04,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:04,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:39:04,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:39:04,920 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 110 [2021-03-25 08:39:04,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 1339 transitions, 34756 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:04,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:04,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 110 [2021-03-25 08:39:04,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:06,517 INFO L129 PetriNetUnfolder]: 847/2842 cut-off events. [2021-03-25 08:39:06,517 INFO L130 PetriNetUnfolder]: For 102558/102715 co-relation queries the response was YES. [2021-03-25 08:39:06,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36028 conditions, 2842 events. 847/2842 cut-off events. For 102558/102715 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 28333 event pairs, 2 based on Foata normal form. 19/2851 useless extension candidates. Maximal degree in co-relation 35622. Up to 2192 conditions per place. [2021-03-25 08:39:06,576 INFO L132 encePairwiseOnDemand]: 70/110 looper letters, 1217 selfloop transitions, 125 changer transitions 1/1347 dead transitions. [2021-03-25 08:39:06,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 1347 transitions, 37635 flow [2021-03-25 08:39:06,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:39:06,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:39:06,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 154 transitions. [2021-03-25 08:39:06,577 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15555555555555556 [2021-03-25 08:39:06,577 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 154 transitions. [2021-03-25 08:39:06,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 154 transitions. [2021-03-25 08:39:06,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:06,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 154 transitions. [2021-03-25 08:39:06,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:06,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:06,578 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:06,578 INFO L185 Difference]: Start difference. First operand has 508 places, 1339 transitions, 34756 flow. Second operand 9 states and 154 transitions. [2021-03-25 08:39:06,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 1347 transitions, 37635 flow [2021-03-25 08:39:07,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 1347 transitions, 37502 flow, removed 29 selfloop flow, removed 3 redundant places. [2021-03-25 08:39:07,876 INFO L241 Difference]: Finished difference. Result has 515 places, 1340 transitions, 35009 flow [2021-03-25 08:39:07,876 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=34606, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=35009, PETRI_PLACES=515, PETRI_TRANSITIONS=1340} [2021-03-25 08:39:07,877 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 500 predicate places. [2021-03-25 08:39:07,877 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:07,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 515 places, 1340 transitions, 35009 flow [2021-03-25 08:39:07,877 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 515 places, 1340 transitions, 35009 flow [2021-03-25 08:39:07,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 515 places, 1340 transitions, 35009 flow [2021-03-25 08:39:08,600 INFO L129 PetriNetUnfolder]: 847/2855 cut-off events. [2021-03-25 08:39:08,601 INFO L130 PetriNetUnfolder]: For 100821/100831 co-relation queries the response was YES. [2021-03-25 08:39:08,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33836 conditions, 2855 events. 847/2855 cut-off events. For 100821/100831 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 28672 event pairs, 2 based on Foata normal form. 0/2845 useless extension candidates. Maximal degree in co-relation 33443. Up to 782 conditions per place. [2021-03-25 08:39:08,756 INFO L142 LiptonReduction]: Number of co-enabled transitions 656 [2021-03-25 08:39:08,950 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:39:08,950 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:39:08,950 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1073 [2021-03-25 08:39:08,950 INFO L480 AbstractCegarLoop]: Abstraction has has 515 places, 1340 transitions, 35009 flow [2021-03-25 08:39:08,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:08,950 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:08,950 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:09,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-03-25 08:39:09,152 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:09,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:09,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1513609361, now seen corresponding path program 1 times [2021-03-25 08:39:09,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:09,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115167502] [2021-03-25 08:39:09,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:09,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:09,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:09,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:09,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:09,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115167502] [2021-03-25 08:39:09,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696413077] [2021-03-25 08:39:09,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:09,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:39:09,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:09,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:09,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:09,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:09,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:09,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:09,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:09,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:09,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:09,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:09,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:09,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:09,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:09,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:09,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:09,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:09,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:09,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:09,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:09,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:09,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:09,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:09,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:09,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:09,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:09,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:09,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:09,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:39:09,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:09,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:09,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:39:09,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:09,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:09,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:09,230 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:39:09,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:39:09,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:09,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:39:09,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:39:09,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:09,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:09,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:09,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:09,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:09,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:09,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:09,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:09,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:09,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:09,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:09,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:39:09,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445950287] [2021-03-25 08:39:09,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:39:09,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:09,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:39:09,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:39:09,239 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 110 [2021-03-25 08:39:09,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 1340 transitions, 35009 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:09,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:09,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 110 [2021-03-25 08:39:09,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:11,027 INFO L129 PetriNetUnfolder]: 849/2846 cut-off events. [2021-03-25 08:39:11,027 INFO L130 PetriNetUnfolder]: For 105405/105993 co-relation queries the response was YES. [2021-03-25 08:39:11,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36291 conditions, 2846 events. 849/2846 cut-off events. For 105405/105993 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 28420 event pairs, 2 based on Foata normal form. 13/2849 useless extension candidates. Maximal degree in co-relation 35884. Up to 2292 conditions per place. [2021-03-25 08:39:11,076 INFO L132 encePairwiseOnDemand]: 75/110 looper letters, 1287 selfloop transitions, 55 changer transitions 0/1346 dead transitions. [2021-03-25 08:39:11,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 1346 transitions, 38045 flow [2021-03-25 08:39:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:39:11,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:39:11,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 150 transitions. [2021-03-25 08:39:11,077 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15151515151515152 [2021-03-25 08:39:11,077 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 150 transitions. [2021-03-25 08:39:11,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 150 transitions. [2021-03-25 08:39:11,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:11,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 150 transitions. [2021-03-25 08:39:11,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 9 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:11,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:11,078 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:11,078 INFO L185 Difference]: Start difference. First operand has 515 places, 1340 transitions, 35009 flow. Second operand 9 states and 150 transitions. [2021-03-25 08:39:11,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 1346 transitions, 38045 flow [2021-03-25 08:39:12,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 1346 transitions, 37800 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-25 08:39:12,397 INFO L241 Difference]: Finished difference. Result has 520 places, 1344 transitions, 35159 flow [2021-03-25 08:39:12,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=34764, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=35159, PETRI_PLACES=520, PETRI_TRANSITIONS=1344} [2021-03-25 08:39:12,397 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 505 predicate places. [2021-03-25 08:39:12,397 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:12,397 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 520 places, 1344 transitions, 35159 flow [2021-03-25 08:39:12,397 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 520 places, 1344 transitions, 35159 flow [2021-03-25 08:39:12,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 520 places, 1344 transitions, 35159 flow [2021-03-25 08:39:13,178 INFO L129 PetriNetUnfolder]: 849/2861 cut-off events. [2021-03-25 08:39:13,178 INFO L130 PetriNetUnfolder]: For 103258/103327 co-relation queries the response was YES. [2021-03-25 08:39:13,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33953 conditions, 2861 events. 849/2861 cut-off events. For 103258/103327 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 28812 event pairs, 2 based on Foata normal form. 0/2851 useless extension candidates. Maximal degree in co-relation 33666. Up to 782 conditions per place. [2021-03-25 08:39:13,239 INFO L142 LiptonReduction]: Number of co-enabled transitions 660 [2021-03-25 08:39:13,412 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:39:13,412 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:39:13,413 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1016 [2021-03-25 08:39:13,413 INFO L480 AbstractCegarLoop]: Abstraction has has 520 places, 1344 transitions, 35159 flow [2021-03-25 08:39:13,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:13,413 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:13,413 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:13,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:13,613 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:13,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:13,614 INFO L82 PathProgramCache]: Analyzing trace with hash 321974561, now seen corresponding path program 1 times [2021-03-25 08:39:13,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:13,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728968802] [2021-03-25 08:39:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:13,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:13,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,651 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:39:13,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:13,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:13,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728968802] [2021-03-25 08:39:13,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572904783] [2021-03-25 08:39:13,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:13,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:39:13,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:13,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:13,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:13,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:13,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:13,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:13,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:13,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:13,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:13,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:13,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:13,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:13,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:13,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:39:13,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:39:13,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:39:13,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:39:13,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:13,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:39:13,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:39:13,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:39:13,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:39:13,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:13,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:13,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:13,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:39:13,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932668368] [2021-03-25 08:39:13,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:39:13,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:13,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:39:13,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:39:13,780 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 110 [2021-03-25 08:39:13,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 1344 transitions, 35159 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:13,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:13,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 110 [2021-03-25 08:39:13,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:15,639 INFO L129 PetriNetUnfolder]: 871/2918 cut-off events. [2021-03-25 08:39:15,639 INFO L130 PetriNetUnfolder]: For 113580/113995 co-relation queries the response was YES. [2021-03-25 08:39:15,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37827 conditions, 2918 events. 871/2918 cut-off events. For 113580/113995 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 29253 event pairs, 2 based on Foata normal form. 12/2920 useless extension candidates. Maximal degree in co-relation 37418. Up to 2327 conditions per place. [2021-03-25 08:39:15,692 INFO L132 encePairwiseOnDemand]: 76/110 looper letters, 1317 selfloop transitions, 67 changer transitions 1/1389 dead transitions. [2021-03-25 08:39:15,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 1389 transitions, 40178 flow [2021-03-25 08:39:15,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:39:15,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:39:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2021-03-25 08:39:15,693 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16590909090909092 [2021-03-25 08:39:15,693 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 146 transitions. [2021-03-25 08:39:15,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 146 transitions. [2021-03-25 08:39:15,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:15,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 146 transitions. [2021-03-25 08:39:15,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:15,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:15,694 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:15,694 INFO L185 Difference]: Start difference. First operand has 520 places, 1344 transitions, 35159 flow. Second operand 8 states and 146 transitions. [2021-03-25 08:39:15,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 1389 transitions, 40178 flow [2021-03-25 08:39:17,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 1389 transitions, 39862 flow, removed 72 selfloop flow, removed 5 redundant places. [2021-03-25 08:39:17,094 INFO L241 Difference]: Finished difference. Result has 526 places, 1372 transitions, 36465 flow [2021-03-25 08:39:17,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=34920, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36465, PETRI_PLACES=526, PETRI_TRANSITIONS=1372} [2021-03-25 08:39:17,094 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 511 predicate places. [2021-03-25 08:39:17,094 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:17,094 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 526 places, 1372 transitions, 36465 flow [2021-03-25 08:39:17,095 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 526 places, 1372 transitions, 36465 flow [2021-03-25 08:39:17,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 526 places, 1372 transitions, 36465 flow [2021-03-25 08:39:17,880 INFO L129 PetriNetUnfolder]: 871/2935 cut-off events. [2021-03-25 08:39:17,880 INFO L130 PetriNetUnfolder]: For 114224/114338 co-relation queries the response was YES. [2021-03-25 08:39:17,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35711 conditions, 2935 events. 871/2935 cut-off events. For 114224/114338 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 29612 event pairs, 2 based on Foata normal form. 0/2925 useless extension candidates. Maximal degree in co-relation 35411. Up to 805 conditions per place. [2021-03-25 08:39:17,955 INFO L142 LiptonReduction]: Number of co-enabled transitions 690 [2021-03-25 08:39:18,825 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:39:18,826 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:39:18,826 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1732 [2021-03-25 08:39:18,826 INFO L480 AbstractCegarLoop]: Abstraction has has 523 places, 1369 transitions, 36484 flow [2021-03-25 08:39:18,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:18,826 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:18,826 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:19,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:19,026 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:19,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:19,027 INFO L82 PathProgramCache]: Analyzing trace with hash 592030064, now seen corresponding path program 2 times [2021-03-25 08:39:19,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:19,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86378185] [2021-03-25 08:39:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:19,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:19,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:19,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:19,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:19,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:19,065 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:39:19,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:19,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86378185] [2021-03-25 08:39:19,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317954408] [2021-03-25 08:39:19,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:19,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:39:19,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:39:19,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-25 08:39:19,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:19,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:19,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:19,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:19,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:19,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:19,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:39:19,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:39:19,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:39:19,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:39:19,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:39:19,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:39:19,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:39:19,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:39:19,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 08:39:19,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 08:39:19,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 08:39:19,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 08:39:19,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:19,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 08:39:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:19,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:19,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2021-03-25 08:39:19,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533404139] [2021-03-25 08:39:19,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:39:19,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:19,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:39:19,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:39:19,175 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 114 [2021-03-25 08:39:19,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 1369 transitions, 36484 flow. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:19,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:19,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 114 [2021-03-25 08:39:19,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:21,822 INFO L129 PetriNetUnfolder]: 918/3161 cut-off events. [2021-03-25 08:39:21,822 INFO L130 PetriNetUnfolder]: For 130953/131191 co-relation queries the response was YES. [2021-03-25 08:39:21,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41363 conditions, 3161 events. 918/3161 cut-off events. For 130953/131191 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 32800 event pairs, 2 based on Foata normal form. 21/3172 useless extension candidates. Maximal degree in co-relation 41020. Up to 2225 conditions per place. [2021-03-25 08:39:21,876 INFO L132 encePairwiseOnDemand]: 77/114 looper letters, 1339 selfloop transitions, 185 changer transitions 11/1539 dead transitions. [2021-03-25 08:39:21,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 1539 transitions, 45016 flow [2021-03-25 08:39:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 08:39:21,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 08:39:21,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 186 transitions. [2021-03-25 08:39:21,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14832535885167464 [2021-03-25 08:39:21,878 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 186 transitions. [2021-03-25 08:39:21,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 186 transitions. [2021-03-25 08:39:21,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:21,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 186 transitions. [2021-03-25 08:39:21,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 16.90909090909091) internal successors, (186), 11 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:21,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 114.0) internal successors, (1368), 12 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:21,879 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 114.0) internal successors, (1368), 12 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:21,879 INFO L185 Difference]: Start difference. First operand has 523 places, 1369 transitions, 36484 flow. Second operand 11 states and 186 transitions. [2021-03-25 08:39:21,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 1539 transitions, 45016 flow [2021-03-25 08:39:23,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 1539 transitions, 44208 flow, removed 383 selfloop flow, removed 5 redundant places. [2021-03-25 08:39:23,352 INFO L241 Difference]: Finished difference. Result has 533 places, 1441 transitions, 38760 flow [2021-03-25 08:39:23,352 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=35696, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=38760, PETRI_PLACES=533, PETRI_TRANSITIONS=1441} [2021-03-25 08:39:23,352 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 518 predicate places. [2021-03-25 08:39:23,352 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:23,353 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 533 places, 1441 transitions, 38760 flow [2021-03-25 08:39:23,353 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 533 places, 1441 transitions, 38760 flow [2021-03-25 08:39:23,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 533 places, 1441 transitions, 38760 flow [2021-03-25 08:39:24,281 INFO L129 PetriNetUnfolder]: 918/3187 cut-off events. [2021-03-25 08:39:24,281 INFO L130 PetriNetUnfolder]: For 130346/130609 co-relation queries the response was YES. [2021-03-25 08:39:24,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39074 conditions, 3187 events. 918/3187 cut-off events. For 130346/130609 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 33247 event pairs, 2 based on Foata normal form. 4/3181 useless extension candidates. Maximal degree in co-relation 38663. Up to 892 conditions per place. [2021-03-25 08:39:24,367 INFO L142 LiptonReduction]: Number of co-enabled transitions 714 [2021-03-25 08:39:26,093 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:39:26,093 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 08:39:26,093 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2741 [2021-03-25 08:39:26,093 INFO L480 AbstractCegarLoop]: Abstraction has has 528 places, 1436 transitions, 38712 flow [2021-03-25 08:39:26,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:26,093 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:26,093 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:26,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-03-25 08:39:26,294 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:26,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:26,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1043007524, now seen corresponding path program 1 times [2021-03-25 08:39:26,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:26,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126310982] [2021-03-25 08:39:26,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:26,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:26,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:26,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126310982] [2021-03-25 08:39:26,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031533871] [2021-03-25 08:39:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:26,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:39:26,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:26,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:26,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:26,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:26,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:26,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:26,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:26,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:26,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:26,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:26,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:26,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:26,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:26,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:26,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:26,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:39:26,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:39:26,333 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:39:26,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:26,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:26,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:26,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:26,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:26,339 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:39:26,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:26,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:26,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:26,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:39:26,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184175105] [2021-03-25 08:39:26,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:39:26,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:26,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:39:26,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:39:26,344 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 119 [2021-03-25 08:39:26,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 1436 transitions, 38712 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:26,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:26,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 119 [2021-03-25 08:39:26,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:28,893 INFO L129 PetriNetUnfolder]: 917/3159 cut-off events. [2021-03-25 08:39:28,893 INFO L130 PetriNetUnfolder]: For 129849/130100 co-relation queries the response was YES. [2021-03-25 08:39:28,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41565 conditions, 3159 events. 917/3159 cut-off events. For 129849/130100 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 32669 event pairs, 2 based on Foata normal form. 12/3161 useless extension candidates. Maximal degree in co-relation 41140. Up to 2431 conditions per place. [2021-03-25 08:39:28,951 INFO L132 encePairwiseOnDemand]: 77/119 looper letters, 1312 selfloop transitions, 127 changer transitions 2/1445 dead transitions. [2021-03-25 08:39:28,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 1445 transitions, 41828 flow [2021-03-25 08:39:28,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:39:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:39:28,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 157 transitions. [2021-03-25 08:39:28,952 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1465919701213819 [2021-03-25 08:39:28,953 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 157 transitions. [2021-03-25 08:39:28,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 157 transitions. [2021-03-25 08:39:28,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:28,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 157 transitions. [2021-03-25 08:39:28,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:28,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:28,954 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:28,954 INFO L185 Difference]: Start difference. First operand has 528 places, 1436 transitions, 38712 flow. Second operand 9 states and 157 transitions. [2021-03-25 08:39:28,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 1445 transitions, 41828 flow [2021-03-25 08:39:30,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 1445 transitions, 40863 flow, removed 407 selfloop flow, removed 2 redundant places. [2021-03-25 08:39:30,612 INFO L241 Difference]: Finished difference. Result has 536 places, 1437 transitions, 38135 flow [2021-03-25 08:39:30,613 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=37733, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=38135, PETRI_PLACES=536, PETRI_TRANSITIONS=1437} [2021-03-25 08:39:30,613 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 521 predicate places. [2021-03-25 08:39:30,613 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:30,613 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 536 places, 1437 transitions, 38135 flow [2021-03-25 08:39:30,613 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 536 places, 1437 transitions, 38135 flow [2021-03-25 08:39:30,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 536 places, 1437 transitions, 38135 flow [2021-03-25 08:39:31,469 INFO L129 PetriNetUnfolder]: 917/3179 cut-off events. [2021-03-25 08:39:31,469 INFO L130 PetriNetUnfolder]: For 126417/126482 co-relation queries the response was YES. [2021-03-25 08:39:31,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38713 conditions, 3179 events. 917/3179 cut-off events. For 126417/126482 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 33208 event pairs, 2 based on Foata normal form. 1/3170 useless extension candidates. Maximal degree in co-relation 38299. Up to 892 conditions per place. [2021-03-25 08:39:31,551 INFO L142 LiptonReduction]: Number of co-enabled transitions 712 [2021-03-25 08:39:32,074 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:39:32,074 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:39:32,075 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1462 [2021-03-25 08:39:32,075 INFO L480 AbstractCegarLoop]: Abstraction has has 535 places, 1436 transitions, 38129 flow [2021-03-25 08:39:32,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:32,075 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:32,075 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:32,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-03-25 08:39:32,275 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:32,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:32,275 INFO L82 PathProgramCache]: Analyzing trace with hash -741057567, now seen corresponding path program 1 times [2021-03-25 08:39:32,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:32,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166238184] [2021-03-25 08:39:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:32,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:32,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:32,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:32,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166238184] [2021-03-25 08:39:32,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110683945] [2021-03-25 08:39:32,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:32,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:39:32,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:32,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:32,337 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:39:32,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:32,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:32,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:32,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:32,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:32,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:32,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:32,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:39:32,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:39:32,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:39:32,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:32,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:32,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:39:32,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:32,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:32,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:39:32,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:39:32,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:39:32,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:32,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:39:32,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:39:32,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:32,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:39:32,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:39:32,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:32,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:32,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:32,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:32,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-03-25 08:39:32,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492151344] [2021-03-25 08:39:32,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:39:32,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:32,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:39:32,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:39:32,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 120 [2021-03-25 08:39:32,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 1436 transitions, 38129 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:32,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:32,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 120 [2021-03-25 08:39:32,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:34,610 INFO L129 PetriNetUnfolder]: 916/3150 cut-off events. [2021-03-25 08:39:34,610 INFO L130 PetriNetUnfolder]: For 129429/129682 co-relation queries the response was YES. [2021-03-25 08:39:34,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41167 conditions, 3150 events. 916/3150 cut-off events. For 129429/129682 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 32586 event pairs, 0 based on Foata normal form. 16/3156 useless extension candidates. Maximal degree in co-relation 40738. Up to 1406 conditions per place. [2021-03-25 08:39:34,663 INFO L132 encePairwiseOnDemand]: 85/120 looper letters, 1281 selfloop transitions, 154 changer transitions 3/1442 dead transitions. [2021-03-25 08:39:34,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 1442 transitions, 41354 flow [2021-03-25 08:39:34,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:39:34,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:39:34,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2021-03-25 08:39:34,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1597222222222222 [2021-03-25 08:39:34,664 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 115 transitions. [2021-03-25 08:39:34,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 115 transitions. [2021-03-25 08:39:34,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:34,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 115 transitions. [2021-03-25 08:39:34,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:34,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:34,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:34,665 INFO L185 Difference]: Start difference. First operand has 535 places, 1436 transitions, 38129 flow. Second operand 6 states and 115 transitions. [2021-03-25 08:39:34,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 1442 transitions, 41354 flow [2021-03-25 08:39:36,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1442 transitions, 41190 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-25 08:39:36,316 INFO L241 Difference]: Finished difference. Result has 535 places, 1432 transitions, 38152 flow [2021-03-25 08:39:36,317 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=37949, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=38152, PETRI_PLACES=535, PETRI_TRANSITIONS=1432} [2021-03-25 08:39:36,317 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 520 predicate places. [2021-03-25 08:39:36,317 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:36,317 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 535 places, 1432 transitions, 38152 flow [2021-03-25 08:39:36,317 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 535 places, 1432 transitions, 38152 flow [2021-03-25 08:39:36,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 531 places, 1432 transitions, 38152 flow [2021-03-25 08:39:37,215 INFO L129 PetriNetUnfolder]: 916/3161 cut-off events. [2021-03-25 08:39:37,216 INFO L130 PetriNetUnfolder]: For 129282/129298 co-relation queries the response was YES. [2021-03-25 08:39:37,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38902 conditions, 3161 events. 916/3161 cut-off events. For 129282/129298 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 32906 event pairs, 2 based on Foata normal form. 0/3152 useless extension candidates. Maximal degree in co-relation 38483. Up to 887 conditions per place. [2021-03-25 08:39:37,309 INFO L142 LiptonReduction]: Number of co-enabled transitions 712 [2021-03-25 08:39:37,532 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:39:37,532 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:39:37,532 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1215 [2021-03-25 08:39:37,532 INFO L480 AbstractCegarLoop]: Abstraction has has 531 places, 1432 transitions, 38152 flow [2021-03-25 08:39:37,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:37,533 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:37,533 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:37,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:37,733 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:37,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:37,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1091208097, now seen corresponding path program 1 times [2021-03-25 08:39:37,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:37,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458253009] [2021-03-25 08:39:37,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:37,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:37,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:37,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:37,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:37,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:37,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458253009] [2021-03-25 08:39:37,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969312476] [2021-03-25 08:39:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:37,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:39:37,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:37,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:37,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:37,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:37,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:37,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:37,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:37,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:37,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:37,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:37,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:37,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:39:37,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:37,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:37,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:39:37,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:37,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:37,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:37,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:37,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:39:37,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:39:37,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:37,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:39:37,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:39:37,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:39:37,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:39:37,809 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-03-25 08:39:37,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:39:37,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:37,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:39:37,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:37,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:37,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:37,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:37,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:37,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:37,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:37,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:37,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:37,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:37,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:37,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-03-25 08:39:37,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389511079] [2021-03-25 08:39:37,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:39:37,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:37,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:39:37,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:39:37,820 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 120 [2021-03-25 08:39:37,820 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 1432 transitions, 38152 flow. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:37,820 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:37,820 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 120 [2021-03-25 08:39:37,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:39,943 INFO L129 PetriNetUnfolder]: 916/3146 cut-off events. [2021-03-25 08:39:39,943 INFO L130 PetriNetUnfolder]: For 132615/133030 co-relation queries the response was YES. [2021-03-25 08:39:39,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41449 conditions, 3146 events. 916/3146 cut-off events. For 132615/133030 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 32496 event pairs, 2 based on Foata normal form. 12/3149 useless extension candidates. Maximal degree in co-relation 41017. Up to 2335 conditions per place. [2021-03-25 08:39:40,001 INFO L132 encePairwiseOnDemand]: 82/120 looper letters, 1248 selfloop transitions, 225 changer transitions 0/1477 dead transitions. [2021-03-25 08:39:40,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1477 transitions, 42200 flow [2021-03-25 08:39:40,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 08:39:40,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 08:39:40,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 185 transitions. [2021-03-25 08:39:40,003 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1284722222222222 [2021-03-25 08:39:40,003 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 185 transitions. [2021-03-25 08:39:40,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 185 transitions. [2021-03-25 08:39:40,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:40,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 185 transitions. [2021-03-25 08:39:40,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:40,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:40,004 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:40,004 INFO L185 Difference]: Start difference. First operand has 531 places, 1432 transitions, 38152 flow. Second operand 12 states and 185 transitions. [2021-03-25 08:39:40,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 1477 transitions, 42200 flow [2021-03-25 08:39:41,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 1477 transitions, 41791 flow, removed 39 selfloop flow, removed 4 redundant places. [2021-03-25 08:39:41,701 INFO L241 Difference]: Finished difference. Result has 540 places, 1441 transitions, 38587 flow [2021-03-25 08:39:41,702 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=37747, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=38587, PETRI_PLACES=540, PETRI_TRANSITIONS=1441} [2021-03-25 08:39:41,702 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 525 predicate places. [2021-03-25 08:39:41,702 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:41,702 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 540 places, 1441 transitions, 38587 flow [2021-03-25 08:39:41,702 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 540 places, 1441 transitions, 38587 flow [2021-03-25 08:39:41,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 540 places, 1441 transitions, 38587 flow [2021-03-25 08:39:42,627 INFO L129 PetriNetUnfolder]: 916/3152 cut-off events. [2021-03-25 08:39:42,627 INFO L130 PetriNetUnfolder]: For 125994/126172 co-relation queries the response was YES. [2021-03-25 08:39:42,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38829 conditions, 3152 events. 916/3152 cut-off events. For 125994/126172 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 32850 event pairs, 2 based on Foata normal form. 4/3147 useless extension candidates. Maximal degree in co-relation 38413. Up to 888 conditions per place. [2021-03-25 08:39:42,811 INFO L142 LiptonReduction]: Number of co-enabled transitions 712 [2021-03-25 08:39:43,394 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:39:43,394 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:39:43,395 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1693 [2021-03-25 08:39:43,395 INFO L480 AbstractCegarLoop]: Abstraction has has 539 places, 1440 transitions, 38581 flow [2021-03-25 08:39:43,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:43,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:43,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:43,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:43,595 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:43,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:43,596 INFO L82 PathProgramCache]: Analyzing trace with hash -149798537, now seen corresponding path program 1 times [2021-03-25 08:39:43,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:43,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891837710] [2021-03-25 08:39:43,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:43,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:43,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:43,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:43,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891837710] [2021-03-25 08:39:43,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350531873] [2021-03-25 08:39:43,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:43,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:39:43,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:43,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:43,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:43,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:43,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:43,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:43,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:43,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:43,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:43,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:43,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:43,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:43,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:43,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:43,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:43,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:43,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:43,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:43,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:43,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:43,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:43,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:43,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:43,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:43,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:43,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:43,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:39:43,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:43,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:43,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:39:43,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:43,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:43,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:39:43,667 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:39:43,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:39:43,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:43,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:39:43,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:39:43,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:43,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:43,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:43,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:43,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:43,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:43,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:43,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:43,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:43,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:43,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:43,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:39:43,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891927140] [2021-03-25 08:39:43,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:39:43,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:43,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:39:43,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:39:43,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 121 [2021-03-25 08:39:43,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 1440 transitions, 38581 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:43,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:43,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 121 [2021-03-25 08:39:43,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:46,073 INFO L129 PetriNetUnfolder]: 918/3157 cut-off events. [2021-03-25 08:39:46,073 INFO L130 PetriNetUnfolder]: For 128220/128491 co-relation queries the response was YES. [2021-03-25 08:39:46,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41535 conditions, 3157 events. 918/3157 cut-off events. For 128220/128491 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 32670 event pairs, 2 based on Foata normal form. 12/3160 useless extension candidates. Maximal degree in co-relation 41106. Up to 2520 conditions per place. [2021-03-25 08:39:46,135 INFO L132 encePairwiseOnDemand]: 86/121 looper letters, 1386 selfloop transitions, 56 changer transitions 0/1446 dead transitions. [2021-03-25 08:39:46,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 1446 transitions, 41840 flow [2021-03-25 08:39:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:39:46,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:39:46,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 150 transitions. [2021-03-25 08:39:46,136 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13774104683195593 [2021-03-25 08:39:46,136 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 150 transitions. [2021-03-25 08:39:46,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 150 transitions. [2021-03-25 08:39:46,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:46,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 150 transitions. [2021-03-25 08:39:46,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 9 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:46,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 121.0) internal successors, (1210), 10 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:46,137 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 121.0) internal successors, (1210), 10 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:46,137 INFO L185 Difference]: Start difference. First operand has 539 places, 1440 transitions, 38581 flow. Second operand 9 states and 150 transitions. [2021-03-25 08:39:46,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 1446 transitions, 41840 flow [2021-03-25 08:39:47,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 1446 transitions, 41479 flow, removed 39 selfloop flow, removed 11 redundant places. [2021-03-25 08:39:48,026 INFO L241 Difference]: Finished difference. Result has 539 places, 1444 transitions, 38634 flow [2021-03-25 08:39:48,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=38220, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=38634, PETRI_PLACES=539, PETRI_TRANSITIONS=1444} [2021-03-25 08:39:48,028 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 524 predicate places. [2021-03-25 08:39:48,028 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:48,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 539 places, 1444 transitions, 38634 flow [2021-03-25 08:39:48,028 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 539 places, 1444 transitions, 38634 flow [2021-03-25 08:39:48,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 539 places, 1444 transitions, 38634 flow [2021-03-25 08:39:49,098 INFO L129 PetriNetUnfolder]: 918/3157 cut-off events. [2021-03-25 08:39:49,098 INFO L130 PetriNetUnfolder]: For 127818/128156 co-relation queries the response was YES. [2021-03-25 08:39:49,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38860 conditions, 3157 events. 918/3157 cut-off events. For 127818/128156 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 32852 event pairs, 2 based on Foata normal form. 0/3148 useless extension candidates. Maximal degree in co-relation 38559. Up to 889 conditions per place. [2021-03-25 08:39:49,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 716 [2021-03-25 08:39:49,470 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:39:49,470 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:39:49,470 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1442 [2021-03-25 08:39:49,470 INFO L480 AbstractCegarLoop]: Abstraction has has 539 places, 1444 transitions, 38634 flow [2021-03-25 08:39:49,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:49,470 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:49,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:49,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:49,671 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:49,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:49,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1119837248, now seen corresponding path program 1 times [2021-03-25 08:39:49,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:49,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758065420] [2021-03-25 08:39:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:49,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:49,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:49,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:49,691 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:39:49,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:49,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:49,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758065420] [2021-03-25 08:39:49,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776015847] [2021-03-25 08:39:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:49,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:39:49,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:49,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:49,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:49,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:49,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:49,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:49,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:39:49,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:39:49,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:39:49,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:39:49,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:49,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:39:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:49,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:49,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 5 [2021-03-25 08:39:49,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674884747] [2021-03-25 08:39:49,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:39:49,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:49,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:39:49,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:39:49,775 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 121 [2021-03-25 08:39:49,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 1444 transitions, 38634 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:49,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:49,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 121 [2021-03-25 08:39:49,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:51,911 INFO L129 PetriNetUnfolder]: 918/3161 cut-off events. [2021-03-25 08:39:51,911 INFO L130 PetriNetUnfolder]: For 128627/128817 co-relation queries the response was YES. [2021-03-25 08:39:51,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41455 conditions, 3161 events. 918/3161 cut-off events. For 128627/128817 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 32679 event pairs, 2 based on Foata normal form. 11/3163 useless extension candidates. Maximal degree in co-relation 41150. Up to 2534 conditions per place. [2021-03-25 08:39:51,971 INFO L132 encePairwiseOnDemand]: 85/121 looper letters, 1396 selfloop transitions, 45 changer transitions 1/1446 dead transitions. [2021-03-25 08:39:51,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 1446 transitions, 41606 flow [2021-03-25 08:39:51,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:39:51,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:39:51,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 127 transitions. [2021-03-25 08:39:51,972 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14994096812278632 [2021-03-25 08:39:51,972 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 127 transitions. [2021-03-25 08:39:51,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 127 transitions. [2021-03-25 08:39:51,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:51,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 127 transitions. [2021-03-25 08:39:51,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:51,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:51,973 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:51,973 INFO L185 Difference]: Start difference. First operand has 539 places, 1444 transitions, 38634 flow. Second operand 7 states and 127 transitions. [2021-03-25 08:39:51,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 1446 transitions, 41606 flow [2021-03-25 08:39:53,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 1446 transitions, 41291 flow, removed 75 selfloop flow, removed 5 redundant places. [2021-03-25 08:39:53,713 INFO L241 Difference]: Finished difference. Result has 541 places, 1445 transitions, 38461 flow [2021-03-25 08:39:53,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=38323, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=38461, PETRI_PLACES=541, PETRI_TRANSITIONS=1445} [2021-03-25 08:39:53,714 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 526 predicate places. [2021-03-25 08:39:53,714 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:53,714 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 541 places, 1445 transitions, 38461 flow [2021-03-25 08:39:53,714 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 541 places, 1445 transitions, 38461 flow [2021-03-25 08:39:53,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 541 places, 1445 transitions, 38461 flow [2021-03-25 08:39:54,613 INFO L129 PetriNetUnfolder]: 918/3161 cut-off events. [2021-03-25 08:39:54,613 INFO L130 PetriNetUnfolder]: For 128414/128553 co-relation queries the response was YES. [2021-03-25 08:39:54,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38995 conditions, 3161 events. 918/3161 cut-off events. For 128414/128553 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 32960 event pairs, 2 based on Foata normal form. 0/3152 useless extension candidates. Maximal degree in co-relation 38695. Up to 891 conditions per place. [2021-03-25 08:39:54,699 INFO L142 LiptonReduction]: Number of co-enabled transitions 716 [2021-03-25 08:39:55,249 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:39:55,249 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:39:55,249 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1535 [2021-03-25 08:39:55,250 INFO L480 AbstractCegarLoop]: Abstraction has has 540 places, 1444 transitions, 38455 flow [2021-03-25 08:39:55,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:55,250 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:39:55,250 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:39:55,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:55,450 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:39:55,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:39:55,451 INFO L82 PathProgramCache]: Analyzing trace with hash 358075318, now seen corresponding path program 2 times [2021-03-25 08:39:55,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:39:55,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369027875] [2021-03-25 08:39:55,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:39:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:39:55,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:39:55,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:55,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:39:55,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:55,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369027875] [2021-03-25 08:39:55,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698211934] [2021-03-25 08:39:55,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:39:55,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:39:55,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:39:55,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:39:55,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:39:55,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:39:55,504 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:39:55,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:55,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:55,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:55,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:55,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:55,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:39:55,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:39:55,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:39:55,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:39:55,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:39:55,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:55,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:39:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:39:55,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:39:55,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:39:55,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:55,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:39:55,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:39:55,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:55,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:39:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:39:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:39:55,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:55,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:39:55,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:39:55,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:39:55,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:39:55,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:39:55,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:39:55,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:39:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:39:55,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:39:55,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-03-25 08:39:55,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436336368] [2021-03-25 08:39:55,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:39:55,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:39:55,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:39:55,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:39:55,548 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 122 [2021-03-25 08:39:55,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 1444 transitions, 38455 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:55,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:39:55,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 122 [2021-03-25 08:39:55,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:39:57,910 INFO L129 PetriNetUnfolder]: 917/3168 cut-off events. [2021-03-25 08:39:57,910 INFO L130 PetriNetUnfolder]: For 132982/134403 co-relation queries the response was YES. [2021-03-25 08:39:57,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41469 conditions, 3168 events. 917/3168 cut-off events. For 132982/134403 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 32743 event pairs, 0 based on Foata normal form. 27/3186 useless extension candidates. Maximal degree in co-relation 41165. Up to 1404 conditions per place. [2021-03-25 08:39:57,963 INFO L132 encePairwiseOnDemand]: 88/122 looper letters, 1290 selfloop transitions, 154 changer transitions 3/1451 dead transitions. [2021-03-25 08:39:57,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 1451 transitions, 41713 flow [2021-03-25 08:39:57,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:39:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:39:57,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2021-03-25 08:39:57,964 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15437158469945356 [2021-03-25 08:39:57,964 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 113 transitions. [2021-03-25 08:39:57,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 113 transitions. [2021-03-25 08:39:57,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:39:57,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 113 transitions. [2021-03-25 08:39:57,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:57,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:57,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:39:57,965 INFO L185 Difference]: Start difference. First operand has 540 places, 1444 transitions, 38455 flow. Second operand 6 states and 113 transitions. [2021-03-25 08:39:57,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 1451 transitions, 41713 flow [2021-03-25 08:39:59,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 1451 transitions, 41622 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 08:39:59,595 INFO L241 Difference]: Finished difference. Result has 541 places, 1441 transitions, 38561 flow [2021-03-25 08:39:59,596 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=38319, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=38561, PETRI_PLACES=541, PETRI_TRANSITIONS=1441} [2021-03-25 08:39:59,596 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 526 predicate places. [2021-03-25 08:39:59,596 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:39:59,596 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 541 places, 1441 transitions, 38561 flow [2021-03-25 08:39:59,597 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 541 places, 1441 transitions, 38561 flow [2021-03-25 08:39:59,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 535 places, 1441 transitions, 38561 flow [2021-03-25 08:40:00,523 INFO L129 PetriNetUnfolder]: 917/3137 cut-off events. [2021-03-25 08:40:00,523 INFO L130 PetriNetUnfolder]: For 132121/132217 co-relation queries the response was YES. [2021-03-25 08:40:00,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39205 conditions, 3137 events. 917/3137 cut-off events. For 132121/132217 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 32531 event pairs, 2 based on Foata normal form. 1/3130 useless extension candidates. Maximal degree in co-relation 38904. Up to 886 conditions per place. [2021-03-25 08:40:00,610 INFO L142 LiptonReduction]: Number of co-enabled transitions 716 [2021-03-25 08:40:00,845 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:40:00,845 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:40:00,846 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1250 [2021-03-25 08:40:00,846 INFO L480 AbstractCegarLoop]: Abstraction has has 535 places, 1441 transitions, 38561 flow [2021-03-25 08:40:00,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:00,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:40:00,846 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:40:01,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:01,048 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:40:01,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:40:01,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1853927421, now seen corresponding path program 1 times [2021-03-25 08:40:01,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:40:01,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566766848] [2021-03-25 08:40:01,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:40:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:01,055 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:40:01,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:01,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:01,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566766848] [2021-03-25 08:40:01,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363215119] [2021-03-25 08:40:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:01,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:40:01,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:40:01,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:01,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:01,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:01,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:40:01,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:01,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:01,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:40:01,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:40:01,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:40:01,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:01,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:40:01,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:40:01,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:01,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:40:01,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:40:01,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,156 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-25 08:40:01,156 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 08:40:01,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:40:01,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:01,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:40:01,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:40:01,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:01,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:40:01,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:40:01,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:40:01,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:40:01,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:01,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:40:01,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:40:01,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:01,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:40:01,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:40:01,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:40:01,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:40:01,203 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 08:40:01,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:40:01,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:01,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 08:40:01,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 08:40:01,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:01,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:01,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:01,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:01,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:01,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:01,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:01,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:01,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:01,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:40:01,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 08:40:01,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235055124] [2021-03-25 08:40:01,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 08:40:01,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:40:01,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 08:40:01,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-25 08:40:01,216 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 122 [2021-03-25 08:40:01,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 1441 transitions, 38561 flow. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:01,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:40:01,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 122 [2021-03-25 08:40:01,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:40:03,445 INFO L129 PetriNetUnfolder]: 963/3250 cut-off events. [2021-03-25 08:40:03,446 INFO L130 PetriNetUnfolder]: For 140473/142011 co-relation queries the response was YES. [2021-03-25 08:40:03,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43144 conditions, 3250 events. 963/3250 cut-off events. For 140473/142011 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 33547 event pairs, 2 based on Foata normal form. 29/3271 useless extension candidates. Maximal degree in co-relation 42839. Up to 2405 conditions per place. [2021-03-25 08:40:03,508 INFO L132 encePairwiseOnDemand]: 89/122 looper letters, 1380 selfloop transitions, 186 changer transitions 0/1570 dead transitions. [2021-03-25 08:40:03,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1570 transitions, 45012 flow [2021-03-25 08:40:03,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:40:03,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:40:03,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2021-03-25 08:40:03,509 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14549180327868852 [2021-03-25 08:40:03,509 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 142 transitions. [2021-03-25 08:40:03,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 142 transitions. [2021-03-25 08:40:03,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:40:03,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 142 transitions. [2021-03-25 08:40:03,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:03,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 122.0) internal successors, (1098), 9 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:03,510 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 122.0) internal successors, (1098), 9 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:03,510 INFO L185 Difference]: Start difference. First operand has 535 places, 1441 transitions, 38561 flow. Second operand 8 states and 142 transitions. [2021-03-25 08:40:03,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 1570 transitions, 45012 flow [2021-03-25 08:40:05,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 1570 transitions, 44821 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 08:40:05,338 INFO L241 Difference]: Finished difference. Result has 542 places, 1497 transitions, 40462 flow [2021-03-25 08:40:05,339 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=38372, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=40462, PETRI_PLACES=542, PETRI_TRANSITIONS=1497} [2021-03-25 08:40:05,339 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 527 predicate places. [2021-03-25 08:40:05,339 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:40:05,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 542 places, 1497 transitions, 40462 flow [2021-03-25 08:40:05,340 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 542 places, 1497 transitions, 40462 flow [2021-03-25 08:40:05,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 542 places, 1497 transitions, 40462 flow [2021-03-25 08:40:06,460 INFO L129 PetriNetUnfolder]: 963/3252 cut-off events. [2021-03-25 08:40:06,460 INFO L130 PetriNetUnfolder]: For 131287/131320 co-relation queries the response was YES. [2021-03-25 08:40:06,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40633 conditions, 3252 events. 963/3252 cut-off events. For 131287/131320 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 33778 event pairs, 2 based on Foata normal form. 1/3245 useless extension candidates. Maximal degree in co-relation 40330. Up to 935 conditions per place. [2021-03-25 08:40:06,551 INFO L142 LiptonReduction]: Number of co-enabled transitions 716 [2021-03-25 08:40:06,793 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:40:06,793 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:40:06,793 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1454 [2021-03-25 08:40:06,794 INFO L480 AbstractCegarLoop]: Abstraction has has 542 places, 1497 transitions, 40462 flow [2021-03-25 08:40:06,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:06,794 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:40:06,794 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:40:06,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2021-03-25 08:40:06,994 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:40:06,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:40:06,995 INFO L82 PathProgramCache]: Analyzing trace with hash -349562855, now seen corresponding path program 1 times [2021-03-25 08:40:06,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:40:06,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841777273] [2021-03-25 08:40:06,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:40:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:07,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:07,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,027 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:40:07,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:07,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:07,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841777273] [2021-03-25 08:40:07,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346040467] [2021-03-25 08:40:07,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:07,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:40:07,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:40:07,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:07,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:07,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:07,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:07,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:07,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:07,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:07,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:07,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:07,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:07,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:07,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:07,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:40:07,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:40:07,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:40:07,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:40:07,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:07,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:07,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:07,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:07,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:07,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:07,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:07,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:40:07,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:40:07,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001071956] [2021-03-25 08:40:07,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:40:07,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:40:07,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:40:07,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:40:07,176 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 122 [2021-03-25 08:40:07,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 1497 transitions, 40462 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:07,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:40:07,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 122 [2021-03-25 08:40:07,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:40:09,435 INFO L129 PetriNetUnfolder]: 985/3322 cut-off events. [2021-03-25 08:40:09,435 INFO L130 PetriNetUnfolder]: For 141852/142016 co-relation queries the response was YES. [2021-03-25 08:40:09,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44885 conditions, 3322 events. 985/3322 cut-off events. For 141852/142016 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 34439 event pairs, 2 based on Foata normal form. 11/3325 useless extension candidates. Maximal degree in co-relation 44451. Up to 2651 conditions per place. [2021-03-25 08:40:09,500 INFO L132 encePairwiseOnDemand]: 89/122 looper letters, 1471 selfloop transitions, 66 changer transitions 1/1542 dead transitions. [2021-03-25 08:40:09,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 1542 transitions, 45816 flow [2021-03-25 08:40:09,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:40:09,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:40:09,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 144 transitions. [2021-03-25 08:40:09,501 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14754098360655737 [2021-03-25 08:40:09,501 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 144 transitions. [2021-03-25 08:40:09,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 144 transitions. [2021-03-25 08:40:09,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:40:09,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 144 transitions. [2021-03-25 08:40:09,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:09,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 122.0) internal successors, (1098), 9 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:09,501 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 122.0) internal successors, (1098), 9 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:09,502 INFO L185 Difference]: Start difference. First operand has 542 places, 1497 transitions, 40462 flow. Second operand 8 states and 144 transitions. [2021-03-25 08:40:09,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 1542 transitions, 45816 flow [2021-03-25 08:40:11,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 1542 transitions, 45589 flow, removed 23 selfloop flow, removed 4 redundant places. [2021-03-25 08:40:11,468 INFO L241 Difference]: Finished difference. Result has 549 places, 1525 transitions, 41852 flow [2021-03-25 08:40:11,469 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=40235, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=41852, PETRI_PLACES=549, PETRI_TRANSITIONS=1525} [2021-03-25 08:40:11,469 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 534 predicate places. [2021-03-25 08:40:11,469 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:40:11,469 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 549 places, 1525 transitions, 41852 flow [2021-03-25 08:40:11,469 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 549 places, 1525 transitions, 41852 flow [2021-03-25 08:40:11,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 549 places, 1525 transitions, 41852 flow [2021-03-25 08:40:12,509 INFO L129 PetriNetUnfolder]: 985/3324 cut-off events. [2021-03-25 08:40:12,510 INFO L130 PetriNetUnfolder]: For 142127/142136 co-relation queries the response was YES. [2021-03-25 08:40:12,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42459 conditions, 3324 events. 985/3324 cut-off events. For 142127/142136 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 34568 event pairs, 2 based on Foata normal form. 1/3317 useless extension candidates. Maximal degree in co-relation 42146. Up to 958 conditions per place. [2021-03-25 08:40:12,608 INFO L142 LiptonReduction]: Number of co-enabled transitions 746 [2021-03-25 08:40:14,022 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:40:14,023 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:40:14,023 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2554 [2021-03-25 08:40:14,023 INFO L480 AbstractCegarLoop]: Abstraction has has 546 places, 1522 transitions, 41875 flow [2021-03-25 08:40:14,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:14,023 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:40:14,023 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:40:14,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:14,224 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:40:14,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:40:14,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1502080360, now seen corresponding path program 1 times [2021-03-25 08:40:14,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:40:14,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839743932] [2021-03-25 08:40:14,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:40:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:14,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:14,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:14,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:14,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:14,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:14,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:14,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:14,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839743932] [2021-03-25 08:40:14,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954830775] [2021-03-25 08:40:14,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:40:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:14,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:40:14,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:40:14,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:14,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:14,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:14,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:14,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:14,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:14,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:14,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:14,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:40:14,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:14,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:40:14,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:40:14,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:40:14,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:40:14,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:40:14,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:40:14,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:40:14,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:14,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:14,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:40:14,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:40:14,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:40:14,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:40:14,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:40:14,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:40:14,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:40:14,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:40:14,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:40:14,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:40:14,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:40:14,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:40:14,337 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-03-25 08:40:14,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:40:14,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:14,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:40:14,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 08:40:14,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:14,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:14,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:14,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:14,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:14,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:14,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:14,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:14,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:14,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:40:14,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 10 [2021-03-25 08:40:14,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340167002] [2021-03-25 08:40:14,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:40:14,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:40:14,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:40:14,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:40:14,347 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 126 [2021-03-25 08:40:14,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 1522 transitions, 41875 flow. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:14,348 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:40:14,348 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 126 [2021-03-25 08:40:14,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:40:17,452 INFO L129 PetriNetUnfolder]: 999/3338 cut-off events. [2021-03-25 08:40:17,453 INFO L130 PetriNetUnfolder]: For 147092/147101 co-relation queries the response was YES. [2021-03-25 08:40:17,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45597 conditions, 3338 events. 999/3338 cut-off events. For 147092/147101 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 34468 event pairs, 2 based on Foata normal form. 22/3352 useless extension candidates. Maximal degree in co-relation 45238. Up to 2557 conditions per place. [2021-03-25 08:40:17,524 INFO L132 encePairwiseOnDemand]: 87/126 looper letters, 1355 selfloop transitions, 207 changer transitions 0/1566 dead transitions. [2021-03-25 08:40:17,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 1566 transitions, 46172 flow [2021-03-25 08:40:17,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 08:40:17,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 08:40:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 245 transitions. [2021-03-25 08:40:17,525 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11437908496732026 [2021-03-25 08:40:17,525 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 245 transitions. [2021-03-25 08:40:17,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 245 transitions. [2021-03-25 08:40:17,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:40:17,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 245 transitions. [2021-03-25 08:40:17,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 14.411764705882353) internal successors, (245), 17 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:17,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 126.0) internal successors, (2268), 18 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:17,527 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 126.0) internal successors, (2268), 18 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:17,527 INFO L185 Difference]: Start difference. First operand has 546 places, 1522 transitions, 41875 flow. Second operand 17 states and 245 transitions. [2021-03-25 08:40:17,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 1566 transitions, 46172 flow [2021-03-25 08:40:19,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 1566 transitions, 45315 flow, removed 408 selfloop flow, removed 5 redundant places. [2021-03-25 08:40:19,687 INFO L241 Difference]: Finished difference. Result has 559 places, 1541 transitions, 42119 flow [2021-03-25 08:40:19,688 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=41020, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=42119, PETRI_PLACES=559, PETRI_TRANSITIONS=1541} [2021-03-25 08:40:19,688 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 544 predicate places. [2021-03-25 08:40:19,688 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:40:19,688 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 559 places, 1541 transitions, 42119 flow [2021-03-25 08:40:19,688 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 559 places, 1541 transitions, 42119 flow [2021-03-25 08:40:19,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 559 places, 1541 transitions, 42119 flow [2021-03-25 08:40:20,785 INFO L129 PetriNetUnfolder]: 999/3361 cut-off events. [2021-03-25 08:40:20,786 INFO L130 PetriNetUnfolder]: For 142911/142911 co-relation queries the response was YES. [2021-03-25 08:40:20,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42537 conditions, 3361 events. 999/3361 cut-off events. For 142911/142911 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 34898 event pairs, 2 based on Foata normal form. 0/3353 useless extension candidates. Maximal degree in co-relation 42111. Up to 968 conditions per place. [2021-03-25 08:40:20,879 INFO L142 LiptonReduction]: Number of co-enabled transitions 740 [2021-03-25 08:40:21,150 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:40:21,150 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:40:21,151 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1463 [2021-03-25 08:40:21,151 INFO L480 AbstractCegarLoop]: Abstraction has has 559 places, 1541 transitions, 42119 flow [2021-03-25 08:40:21,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:21,151 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:40:21,151 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:40:21,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-03-25 08:40:21,351 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:40:21,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:40:21,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1974160936, now seen corresponding path program 1 times [2021-03-25 08:40:21,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:40:21,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822954054] [2021-03-25 08:40:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:40:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:21,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:21,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:21,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:21,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:21,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822954054] [2021-03-25 08:40:21,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768516561] [2021-03-25 08:40:21,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:21,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:40:21,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:40:21,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:21,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:21,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:21,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:21,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:21,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:21,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:21,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:21,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:21,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:21,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:21,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:21,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:21,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:21,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:40:21,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:40:21,394 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:40:21,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:21,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:21,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:21,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:21,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:21,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:21,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:21,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:21,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:21,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:21,398 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:40:21,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:21,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:21,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:40:21,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:40:21,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629792972] [2021-03-25 08:40:21,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:40:21,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:40:21,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:40:21,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:40:21,404 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 126 [2021-03-25 08:40:21,404 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 1541 transitions, 42119 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:21,404 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:40:21,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 126 [2021-03-25 08:40:21,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:40:23,798 INFO L129 PetriNetUnfolder]: 998/3331 cut-off events. [2021-03-25 08:40:23,798 INFO L130 PetriNetUnfolder]: For 149384/151369 co-relation queries the response was YES. [2021-03-25 08:40:23,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45213 conditions, 3331 events. 998/3331 cut-off events. For 149384/151369 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 34400 event pairs, 2 based on Foata normal form. 21/3344 useless extension candidates. Maximal degree in co-relation 44774. Up to 2613 conditions per place. [2021-03-25 08:40:23,995 INFO L132 encePairwiseOnDemand]: 87/126 looper letters, 1418 selfloop transitions, 124 changer transitions 1/1547 dead transitions. [2021-03-25 08:40:23,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 1547 transitions, 45357 flow [2021-03-25 08:40:23,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:40:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:40:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 153 transitions. [2021-03-25 08:40:23,997 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1349206349206349 [2021-03-25 08:40:23,997 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 153 transitions. [2021-03-25 08:40:23,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 153 transitions. [2021-03-25 08:40:23,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:40:23,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 153 transitions. [2021-03-25 08:40:23,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.0) internal successors, (153), 9 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:23,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:23,998 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:23,998 INFO L185 Difference]: Start difference. First operand has 559 places, 1541 transitions, 42119 flow. Second operand 9 states and 153 transitions. [2021-03-25 08:40:23,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 1547 transitions, 45357 flow [2021-03-25 08:40:25,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 1547 transitions, 44777 flow, removed 130 selfloop flow, removed 12 redundant places. [2021-03-25 08:40:25,889 INFO L241 Difference]: Finished difference. Result has 556 places, 1541 transitions, 41890 flow [2021-03-25 08:40:25,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=41522, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=41890, PETRI_PLACES=556, PETRI_TRANSITIONS=1541} [2021-03-25 08:40:25,890 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 541 predicate places. [2021-03-25 08:40:25,890 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:40:25,890 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 556 places, 1541 transitions, 41890 flow [2021-03-25 08:40:25,890 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 556 places, 1541 transitions, 41890 flow [2021-03-25 08:40:25,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 556 places, 1541 transitions, 41890 flow [2021-03-25 08:40:26,935 INFO L129 PetriNetUnfolder]: 998/3358 cut-off events. [2021-03-25 08:40:26,935 INFO L130 PetriNetUnfolder]: For 140836/140836 co-relation queries the response was YES. [2021-03-25 08:40:26,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42331 conditions, 3358 events. 998/3358 cut-off events. For 140836/140836 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 34927 event pairs, 2 based on Foata normal form. 0/3350 useless extension candidates. Maximal degree in co-relation 41906. Up to 954 conditions per place. [2021-03-25 08:40:27,031 INFO L142 LiptonReduction]: Number of co-enabled transitions 738 [2021-03-25 08:40:27,305 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:40:27,305 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:40:27,305 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1415 [2021-03-25 08:40:27,306 INFO L480 AbstractCegarLoop]: Abstraction has has 556 places, 1541 transitions, 41890 flow [2021-03-25 08:40:27,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:27,306 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:40:27,306 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:40:27,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-03-25 08:40:27,506 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:40:27,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:40:27,507 INFO L82 PathProgramCache]: Analyzing trace with hash 2135102993, now seen corresponding path program 1 times [2021-03-25 08:40:27,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:40:27,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952194590] [2021-03-25 08:40:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:40:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:27,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:27,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:27,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:27,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:27,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952194590] [2021-03-25 08:40:27,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716849997] [2021-03-25 08:40:27,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:27,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:40:27,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:40:27,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:27,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:27,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:27,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:27,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:27,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:27,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:27,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:27,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:27,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:27,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:27,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:27,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:27,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:27,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:27,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:27,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:27,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:27,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:27,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:27,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:27,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:27,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:27,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:27,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:27,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:27,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:40:27,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:40:27,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:27,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:40:27,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:40:27,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:27,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:27,618 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:40:27,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:40:27,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:27,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:40:27,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:40:27,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:27,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:27,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:27,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:27,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:27,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:27,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:27,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:27,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:27,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:27,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:40:27,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:40:27,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032434959] [2021-03-25 08:40:27,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:40:27,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:40:27,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:40:27,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:40:27,628 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 126 [2021-03-25 08:40:27,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 1541 transitions, 41890 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:27,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:40:27,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 126 [2021-03-25 08:40:27,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:40:30,204 INFO L129 PetriNetUnfolder]: 1000/3335 cut-off events. [2021-03-25 08:40:30,205 INFO L130 PetriNetUnfolder]: For 144454/144463 co-relation queries the response was YES. [2021-03-25 08:40:30,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45196 conditions, 3335 events. 1000/3335 cut-off events. For 144454/144463 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 34307 event pairs, 2 based on Foata normal form. 10/3337 useless extension candidates. Maximal degree in co-relation 44758. Up to 2695 conditions per place. [2021-03-25 08:40:30,264 INFO L132 encePairwiseOnDemand]: 91/126 looper letters, 1486 selfloop transitions, 57 changer transitions 0/1547 dead transitions. [2021-03-25 08:40:30,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 1547 transitions, 45372 flow [2021-03-25 08:40:30,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:40:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:40:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 149 transitions. [2021-03-25 08:40:30,266 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13139329805996472 [2021-03-25 08:40:30,266 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 149 transitions. [2021-03-25 08:40:30,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 149 transitions. [2021-03-25 08:40:30,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:40:30,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 149 transitions. [2021-03-25 08:40:30,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:30,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:30,267 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:30,267 INFO L185 Difference]: Start difference. First operand has 556 places, 1541 transitions, 41890 flow. Second operand 9 states and 149 transitions. [2021-03-25 08:40:30,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 1547 transitions, 45372 flow [2021-03-25 08:40:32,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 558 places, 1547 transitions, 45213 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-25 08:40:32,261 INFO L241 Difference]: Finished difference. Result has 561 places, 1545 transitions, 42162 flow [2021-03-25 08:40:32,262 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=41731, PETRI_DIFFERENCE_MINUEND_PLACES=550, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=42162, PETRI_PLACES=561, PETRI_TRANSITIONS=1545} [2021-03-25 08:40:32,262 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 546 predicate places. [2021-03-25 08:40:32,262 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:40:32,262 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 561 places, 1545 transitions, 42162 flow [2021-03-25 08:40:32,262 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 561 places, 1545 transitions, 42162 flow [2021-03-25 08:40:32,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 561 places, 1545 transitions, 42162 flow [2021-03-25 08:40:33,292 INFO L129 PetriNetUnfolder]: 1000/3365 cut-off events. [2021-03-25 08:40:33,292 INFO L130 PetriNetUnfolder]: For 146438/146674 co-relation queries the response was YES. [2021-03-25 08:40:33,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42548 conditions, 3365 events. 1000/3365 cut-off events. For 146438/146674 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 35032 event pairs, 2 based on Foata normal form. 6/3363 useless extension candidates. Maximal degree in co-relation 42232. Up to 954 conditions per place. [2021-03-25 08:40:33,398 INFO L142 LiptonReduction]: Number of co-enabled transitions 742 [2021-03-25 08:40:33,653 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:40:33,653 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:40:33,653 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1391 [2021-03-25 08:40:33,653 INFO L480 AbstractCegarLoop]: Abstraction has has 561 places, 1545 transitions, 42162 flow [2021-03-25 08:40:33,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:33,653 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:40:33,654 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:40:33,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:33,854 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:40:33,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:40:33,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1233019271, now seen corresponding path program 1 times [2021-03-25 08:40:33,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:40:33,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185913995] [2021-03-25 08:40:33,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:40:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:33,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:33,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,887 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:40:33,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:33,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185913995] [2021-03-25 08:40:33,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415583864] [2021-03-25 08:40:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:33,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:40:33,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:40:33,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:33,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:33,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:33,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:33,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:33,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:33,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:33,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:33,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:33,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:33,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:33,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:33,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:40:33,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:40:33,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:40:33,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:40:33,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:33,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:33,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:33,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:33,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:33,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:33,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:33,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:40:33,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:40:33,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140724842] [2021-03-25 08:40:33,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:40:33,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:40:33,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:40:33,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:40:33,970 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 126 [2021-03-25 08:40:33,970 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 1545 transitions, 42162 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:33,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:40:33,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 126 [2021-03-25 08:40:33,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:40:36,398 INFO L129 PetriNetUnfolder]: 1022/3407 cut-off events. [2021-03-25 08:40:36,398 INFO L130 PetriNetUnfolder]: For 156666/156759 co-relation queries the response was YES. [2021-03-25 08:40:36,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46957 conditions, 3407 events. 1022/3407 cut-off events. For 156666/156759 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 35265 event pairs, 2 based on Foata normal form. 40/3439 useless extension candidates. Maximal degree in co-relation 46516. Up to 2732 conditions per place. [2021-03-25 08:40:36,470 INFO L132 encePairwiseOnDemand]: 92/126 looper letters, 1518 selfloop transitions, 67 changer transitions 1/1590 dead transitions. [2021-03-25 08:40:36,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 1590 transitions, 47783 flow [2021-03-25 08:40:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:40:36,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:40:36,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 145 transitions. [2021-03-25 08:40:36,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14384920634920634 [2021-03-25 08:40:36,471 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 145 transitions. [2021-03-25 08:40:36,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 145 transitions. [2021-03-25 08:40:36,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:40:36,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 145 transitions. [2021-03-25 08:40:36,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.125) internal successors, (145), 8 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:36,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 126.0) internal successors, (1134), 9 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:36,472 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 126.0) internal successors, (1134), 9 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:36,472 INFO L185 Difference]: Start difference. First operand has 561 places, 1545 transitions, 42162 flow. Second operand 8 states and 145 transitions. [2021-03-25 08:40:36,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 1590 transitions, 47783 flow [2021-03-25 08:40:38,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1590 transitions, 47450 flow, removed 78 selfloop flow, removed 5 redundant places. [2021-03-25 08:40:38,542 INFO L241 Difference]: Finished difference. Result has 567 places, 1573 transitions, 43595 flow [2021-03-25 08:40:38,543 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=41912, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=43595, PETRI_PLACES=567, PETRI_TRANSITIONS=1573} [2021-03-25 08:40:38,543 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 552 predicate places. [2021-03-25 08:40:38,544 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:40:38,544 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 567 places, 1573 transitions, 43595 flow [2021-03-25 08:40:38,544 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 567 places, 1573 transitions, 43595 flow [2021-03-25 08:40:38,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 567 places, 1573 transitions, 43595 flow [2021-03-25 08:40:39,628 INFO L129 PetriNetUnfolder]: 1022/3439 cut-off events. [2021-03-25 08:40:39,628 INFO L130 PetriNetUnfolder]: For 156719/156730 co-relation queries the response was YES. [2021-03-25 08:40:39,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44484 conditions, 3439 events. 1022/3439 cut-off events. For 156719/156730 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 35886 event pairs, 2 based on Foata normal form. 1/3432 useless extension candidates. Maximal degree in co-relation 44073. Up to 977 conditions per place. [2021-03-25 08:40:39,854 INFO L142 LiptonReduction]: Number of co-enabled transitions 772 [2021-03-25 08:40:41,018 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 08:40:41,018 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 08:40:41,018 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2474 [2021-03-25 08:40:41,018 INFO L480 AbstractCegarLoop]: Abstraction has has 565 places, 1571 transitions, 43637 flow [2021-03-25 08:40:41,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:41,018 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:40:41,018 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:40:41,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:41,219 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:40:41,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:40:41,219 INFO L82 PathProgramCache]: Analyzing trace with hash 945844936, now seen corresponding path program 1 times [2021-03-25 08:40:41,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:40:41,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494427476] [2021-03-25 08:40:41,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:40:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:41,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:41,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:41,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:41,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:41,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,243 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:41,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494427476] [2021-03-25 08:40:41,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636031249] [2021-03-25 08:40:41,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:41,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:40:41,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:40:41,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:41,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:41,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:41,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:41,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:41,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:41,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:41,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:40:41,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:40:41,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:41,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:41,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:40:41,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:41,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:41,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:40:41,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:40:41,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:40:41,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:41,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:40:41,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:40:41,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:41,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:40:41,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:40:41,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:41,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:41,298 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:40:41,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:40:41,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:41,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:40:41,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:40:41,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:41,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:41,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:41,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:40:41,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:41,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:41,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:40:41,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 08:40:41,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:41,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:41,327 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:41,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:40:41,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-03-25 08:40:41,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376703172] [2021-03-25 08:40:41,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:40:41,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:40:41,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:40:41,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:40:41,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 129 [2021-03-25 08:40:41,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 1571 transitions, 43637 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:41,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:40:41,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 129 [2021-03-25 08:40:41,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:40:44,727 INFO L129 PetriNetUnfolder]: 1043/3485 cut-off events. [2021-03-25 08:40:44,728 INFO L130 PetriNetUnfolder]: For 169468/169778 co-relation queries the response was YES. [2021-03-25 08:40:44,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49012 conditions, 3485 events. 1043/3485 cut-off events. For 169468/169778 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 36223 event pairs, 1 based on Foata normal form. 16/3493 useless extension candidates. Maximal degree in co-relation 48679. Up to 2192 conditions per place. [2021-03-25 08:40:44,800 INFO L132 encePairwiseOnDemand]: 90/129 looper letters, 1170 selfloop transitions, 468 changer transitions 1/1643 dead transitions. [2021-03-25 08:40:44,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 1643 transitions, 50594 flow [2021-03-25 08:40:44,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:40:44,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:40:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 160 transitions. [2021-03-25 08:40:44,801 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13781223083548666 [2021-03-25 08:40:44,801 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 160 transitions. [2021-03-25 08:40:44,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 160 transitions. [2021-03-25 08:40:44,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:40:44,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 160 transitions. [2021-03-25 08:40:44,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:44,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:44,802 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:44,802 INFO L185 Difference]: Start difference. First operand has 565 places, 1571 transitions, 43637 flow. Second operand 9 states and 160 transitions. [2021-03-25 08:40:44,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 1643 transitions, 50594 flow [2021-03-25 08:40:46,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 1643 transitions, 49602 flow, removed 475 selfloop flow, removed 4 redundant places. [2021-03-25 08:40:47,006 INFO L241 Difference]: Finished difference. Result has 571 places, 1597 transitions, 45712 flow [2021-03-25 08:40:47,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=42606, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=448, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=45712, PETRI_PLACES=571, PETRI_TRANSITIONS=1597} [2021-03-25 08:40:47,007 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 556 predicate places. [2021-03-25 08:40:47,007 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:40:47,007 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 571 places, 1597 transitions, 45712 flow [2021-03-25 08:40:47,007 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 571 places, 1597 transitions, 45712 flow [2021-03-25 08:40:47,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 570 places, 1597 transitions, 45712 flow [2021-03-25 08:40:48,155 INFO L129 PetriNetUnfolder]: 1043/3514 cut-off events. [2021-03-25 08:40:48,155 INFO L130 PetriNetUnfolder]: For 165022/165022 co-relation queries the response was YES. [2021-03-25 08:40:48,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46783 conditions, 3514 events. 1043/3514 cut-off events. For 165022/165022 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 36787 event pairs, 2 based on Foata normal form. 0/3506 useless extension candidates. Maximal degree in co-relation 46464. Up to 1005 conditions per place. [2021-03-25 08:40:48,258 INFO L142 LiptonReduction]: Number of co-enabled transitions 802 [2021-03-25 08:40:48,525 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:40:48,526 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:40:48,526 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1519 [2021-03-25 08:40:48,526 INFO L480 AbstractCegarLoop]: Abstraction has has 570 places, 1597 transitions, 45712 flow [2021-03-25 08:40:48,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:48,526 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:40:48,526 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:40:48,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:48,727 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:40:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:40:48,727 INFO L82 PathProgramCache]: Analyzing trace with hash -2111731016, now seen corresponding path program 1 times [2021-03-25 08:40:48,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:40:48,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928269815] [2021-03-25 08:40:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:40:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:48,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:48,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:48,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:48,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:48,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:48,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928269815] [2021-03-25 08:40:48,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782600380] [2021-03-25 08:40:48,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:40:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:48,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:40:48,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:48,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:48,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:48,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:48,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:48,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:48,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:48,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:48,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:48,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:48,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:48,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:48,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:48,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:48,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:48,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:40:48,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:40:48,806 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:40:48,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:48,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:48,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:48,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:48,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:48,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:48,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:48,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:48,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:48,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:48,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:48,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:48,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:40:48,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:48,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:40:48,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:40:48,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:40:48,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:40:48,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:48,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:40:48,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:40:48,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:48,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:40:48,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:40:48,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:48,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:48,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:40:48,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:40:48,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261741219] [2021-03-25 08:40:48,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:40:48,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:40:48,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:40:48,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:40:48,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 129 [2021-03-25 08:40:48,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 1597 transitions, 45712 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:48,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:40:48,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 129 [2021-03-25 08:40:48,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:40:51,526 INFO L129 PetriNetUnfolder]: 1042/3479 cut-off events. [2021-03-25 08:40:51,526 INFO L130 PetriNetUnfolder]: For 171746/173935 co-relation queries the response was YES. [2021-03-25 08:40:51,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49574 conditions, 3479 events. 1042/3479 cut-off events. For 171746/173935 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 36202 event pairs, 0 based on Foata normal form. 21/3492 useless extension candidates. Maximal degree in co-relation 49250. Up to 1510 conditions per place. [2021-03-25 08:40:51,591 INFO L132 encePairwiseOnDemand]: 88/129 looper letters, 1363 selfloop transitions, 242 changer transitions 3/1612 dead transitions. [2021-03-25 08:40:51,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 1612 transitions, 49387 flow [2021-03-25 08:40:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 08:40:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 08:40:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 210 transitions. [2021-03-25 08:40:51,592 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11627906976744186 [2021-03-25 08:40:51,592 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 210 transitions. [2021-03-25 08:40:51,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 210 transitions. [2021-03-25 08:40:51,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:40:51,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 210 transitions. [2021-03-25 08:40:51,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 15.0) internal successors, (210), 14 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:51,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 129.0) internal successors, (1935), 15 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:51,593 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 129.0) internal successors, (1935), 15 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:51,593 INFO L185 Difference]: Start difference. First operand has 570 places, 1597 transitions, 45712 flow. Second operand 14 states and 210 transitions. [2021-03-25 08:40:51,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 1612 transitions, 49387 flow [2021-03-25 08:40:53,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 1612 transitions, 49166 flow, removed 92 selfloop flow, removed 4 redundant places. [2021-03-25 08:40:53,738 INFO L241 Difference]: Finished difference. Result has 580 places, 1595 transitions, 46024 flow [2021-03-25 08:40:53,738 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=45480, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=46024, PETRI_PLACES=580, PETRI_TRANSITIONS=1595} [2021-03-25 08:40:53,739 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 565 predicate places. [2021-03-25 08:40:53,739 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:40:53,739 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 580 places, 1595 transitions, 46024 flow [2021-03-25 08:40:53,739 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 580 places, 1595 transitions, 46024 flow [2021-03-25 08:40:53,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 577 places, 1595 transitions, 46024 flow [2021-03-25 08:40:54,876 INFO L129 PetriNetUnfolder]: 1042/3510 cut-off events. [2021-03-25 08:40:54,876 INFO L130 PetriNetUnfolder]: For 165358/165376 co-relation queries the response was YES. [2021-03-25 08:40:54,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47025 conditions, 3510 events. 1042/3510 cut-off events. For 165358/165376 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 36659 event pairs, 2 based on Foata normal form. 0/3502 useless extension candidates. Maximal degree in co-relation 46522. Up to 1003 conditions per place. [2021-03-25 08:40:54,981 INFO L142 LiptonReduction]: Number of co-enabled transitions 798 [2021-03-25 08:40:55,268 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:40:55,268 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:40:55,268 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1529 [2021-03-25 08:40:55,269 INFO L480 AbstractCegarLoop]: Abstraction has has 577 places, 1595 transitions, 46024 flow [2021-03-25 08:40:55,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:55,269 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:40:55,269 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:40:55,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2021-03-25 08:40:55,469 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:40:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:40:55,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1010477463, now seen corresponding path program 1 times [2021-03-25 08:40:55,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:40:55,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545517464] [2021-03-25 08:40:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:40:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:55,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:55,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:55,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:55,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:55,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545517464] [2021-03-25 08:40:55,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345730627] [2021-03-25 08:40:55,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:40:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:40:55,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:40:55,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:40:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:55,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:55,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:55,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:55,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:55,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:55,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:40:55,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:55,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:55,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:55,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:55,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:55,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:55,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:55,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:55,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:55,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:55,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:40:55,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:55,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:55,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:40:55,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:40:55,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:55,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:40:55,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:40:55,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:55,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:40:55,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:40:55,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:55,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:40:55,537 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:40:55,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:40:55,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:40:55,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:40:55,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:40:55,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:55,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:55,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:55,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:55,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:55,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:55,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:55,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:40:55,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:40:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:40:55,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:40:55,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:40:55,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980689243] [2021-03-25 08:40:55,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:40:55,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:40:55,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:40:55,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:40:55,545 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 129 [2021-03-25 08:40:55,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 1595 transitions, 46024 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:55,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:40:55,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 129 [2021-03-25 08:40:55,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:40:58,016 INFO L129 PetriNetUnfolder]: 1044/3488 cut-off events. [2021-03-25 08:40:58,016 INFO L130 PetriNetUnfolder]: For 169955/170260 co-relation queries the response was YES. [2021-03-25 08:40:58,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50016 conditions, 3488 events. 1044/3488 cut-off events. For 169955/170260 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 36248 event pairs, 2 based on Foata normal form. 26/3506 useless extension candidates. Maximal degree in co-relation 49492. Up to 2800 conditions per place. [2021-03-25 08:40:58,090 INFO L132 encePairwiseOnDemand]: 93/129 looper letters, 1535 selfloop transitions, 65 changer transitions 0/1604 dead transitions. [2021-03-25 08:40:58,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 1604 transitions, 49848 flow [2021-03-25 08:40:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:40:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:40:58,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 149 transitions. [2021-03-25 08:40:58,091 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12833763996554695 [2021-03-25 08:40:58,091 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 149 transitions. [2021-03-25 08:40:58,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 149 transitions. [2021-03-25 08:40:58,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:40:58,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 149 transitions. [2021-03-25 08:40:58,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:58,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:58,092 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:40:58,092 INFO L185 Difference]: Start difference. First operand has 577 places, 1595 transitions, 46024 flow. Second operand 9 states and 149 transitions. [2021-03-25 08:40:58,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 1604 transitions, 49848 flow [2021-03-25 08:41:00,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 1604 transitions, 49488 flow, removed 4 selfloop flow, removed 10 redundant places. [2021-03-25 08:41:00,388 INFO L241 Difference]: Finished difference. Result has 578 places, 1599 transitions, 46137 flow [2021-03-25 08:41:00,389 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=45664, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=46137, PETRI_PLACES=578, PETRI_TRANSITIONS=1599} [2021-03-25 08:41:00,390 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 563 predicate places. [2021-03-25 08:41:00,390 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:41:00,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 578 places, 1599 transitions, 46137 flow [2021-03-25 08:41:00,390 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 578 places, 1599 transitions, 46137 flow [2021-03-25 08:41:00,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 578 places, 1599 transitions, 46137 flow [2021-03-25 08:41:01,563 INFO L129 PetriNetUnfolder]: 1044/3521 cut-off events. [2021-03-25 08:41:01,563 INFO L130 PetriNetUnfolder]: For 161868/161914 co-relation queries the response was YES. [2021-03-25 08:41:01,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46987 conditions, 3521 events. 1044/3521 cut-off events. For 161868/161914 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 36828 event pairs, 2 based on Foata normal form. 0/3513 useless extension candidates. Maximal degree in co-relation 46486. Up to 1004 conditions per place. [2021-03-25 08:41:01,653 INFO L142 LiptonReduction]: Number of co-enabled transitions 802 [2021-03-25 08:41:02,312 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:41:02,312 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:41:02,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1922 [2021-03-25 08:41:02,313 INFO L480 AbstractCegarLoop]: Abstraction has has 578 places, 1599 transitions, 46234 flow [2021-03-25 08:41:02,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:02,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:41:02,313 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:41:02,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:02,516 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:41:02,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:41:02,516 INFO L82 PathProgramCache]: Analyzing trace with hash -805810605, now seen corresponding path program 1 times [2021-03-25 08:41:02,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:41:02,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173455596] [2021-03-25 08:41:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:41:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:02,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:02,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,546 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:41:02,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:02,548 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:02,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173455596] [2021-03-25 08:41:02,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94365243] [2021-03-25 08:41:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:02,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:41:02,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:41:02,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:02,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:02,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:02,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:02,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:02,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:02,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:02,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:02,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:02,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:02,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:41:02,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:41:02,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:41:02,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:41:02,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:02,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:02,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:41:02,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:41:02,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073361519] [2021-03-25 08:41:02,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:41:02,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:41:02,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:41:02,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:41:02,622 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 131 [2021-03-25 08:41:02,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 1599 transitions, 46234 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:02,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:41:02,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 131 [2021-03-25 08:41:02,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:41:05,540 INFO L129 PetriNetUnfolder]: 1044/3486 cut-off events. [2021-03-25 08:41:05,540 INFO L130 PetriNetUnfolder]: For 163781/163846 co-relation queries the response was YES. [2021-03-25 08:41:05,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49935 conditions, 3486 events. 1044/3486 cut-off events. For 163781/163846 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 36223 event pairs, 2 based on Foata normal form. 10/3488 useless extension candidates. Maximal degree in co-relation 49418. Up to 2791 conditions per place. [2021-03-25 08:41:05,616 INFO L132 encePairwiseOnDemand]: 95/131 looper letters, 1545 selfloop transitions, 68 changer transitions 1/1618 dead transitions. [2021-03-25 08:41:05,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 1618 transitions, 50482 flow [2021-03-25 08:41:05,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:41:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:41:05,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2021-03-25 08:41:05,617 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13931297709923665 [2021-03-25 08:41:05,617 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 146 transitions. [2021-03-25 08:41:05,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 146 transitions. [2021-03-25 08:41:05,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:41:05,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 146 transitions. [2021-03-25 08:41:05,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:05,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:05,618 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:05,618 INFO L185 Difference]: Start difference. First operand has 578 places, 1599 transitions, 46234 flow. Second operand 8 states and 146 transitions. [2021-03-25 08:41:05,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 1618 transitions, 50482 flow [2021-03-25 08:41:07,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 1618 transitions, 50137 flow, removed 73 selfloop flow, removed 6 redundant places. [2021-03-25 08:41:07,872 INFO L241 Difference]: Finished difference. Result has 581 places, 1601 transitions, 46177 flow [2021-03-25 08:41:07,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=45893, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=46177, PETRI_PLACES=581, PETRI_TRANSITIONS=1601} [2021-03-25 08:41:07,873 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 566 predicate places. [2021-03-25 08:41:07,873 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:41:07,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 581 places, 1601 transitions, 46177 flow [2021-03-25 08:41:07,873 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 581 places, 1601 transitions, 46177 flow [2021-03-25 08:41:07,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 581 places, 1601 transitions, 46177 flow [2021-03-25 08:41:08,998 INFO L129 PetriNetUnfolder]: 1044/3524 cut-off events. [2021-03-25 08:41:08,998 INFO L130 PetriNetUnfolder]: For 162772/162772 co-relation queries the response was YES. [2021-03-25 08:41:09,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47297 conditions, 3524 events. 1044/3524 cut-off events. For 162772/162772 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 36847 event pairs, 2 based on Foata normal form. 0/3516 useless extension candidates. Maximal degree in co-relation 46792. Up to 1005 conditions per place. [2021-03-25 08:41:09,101 INFO L142 LiptonReduction]: Number of co-enabled transitions 804 [2021-03-25 08:41:10,304 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:41:10,304 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:41:10,305 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2432 [2021-03-25 08:41:10,305 INFO L480 AbstractCegarLoop]: Abstraction has has 578 places, 1599 transitions, 46155 flow [2021-03-25 08:41:10,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:10,305 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:41:10,305 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:41:10,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2021-03-25 08:41:10,512 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:41:10,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:41:10,512 INFO L82 PathProgramCache]: Analyzing trace with hash -973351472, now seen corresponding path program 1 times [2021-03-25 08:41:10,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:41:10,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537475800] [2021-03-25 08:41:10,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:41:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:10,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:10,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:10,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:10,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537475800] [2021-03-25 08:41:10,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451359699] [2021-03-25 08:41:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:10,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:41:10,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:41:10,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:10,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:10,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:10,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:10,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:10,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:10,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:10,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:10,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:10,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:10,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:10,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:10,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:10,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:10,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:10,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:10,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:10,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:10,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:10,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:10,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:10,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:10,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:10,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:10,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:10,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:10,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:41:10,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:41:10,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:10,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:41:10,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:41:10,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:10,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:10,606 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:41:10,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:41:10,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:10,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:41:10,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:41:10,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:10,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:10,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:10,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:10,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:10,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:10,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:10,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:10,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:10,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:41:10,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:41:10,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853997126] [2021-03-25 08:41:10,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:41:10,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:41:10,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:41:10,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:41:10,615 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 133 [2021-03-25 08:41:10,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 1599 transitions, 46155 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:10,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:41:10,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 133 [2021-03-25 08:41:10,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:41:13,887 INFO L129 PetriNetUnfolder]: 1046/3488 cut-off events. [2021-03-25 08:41:13,887 INFO L130 PetriNetUnfolder]: For 167339/167714 co-relation queries the response was YES. [2021-03-25 08:41:13,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50228 conditions, 3488 events. 1046/3488 cut-off events. For 167339/167714 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 36200 event pairs, 2 based on Foata normal form. 12/3492 useless extension candidates. Maximal degree in co-relation 49702. Up to 2810 conditions per place. [2021-03-25 08:41:13,962 INFO L132 encePairwiseOnDemand]: 95/133 looper letters, 1540 selfloop transitions, 63 changer transitions 0/1607 dead transitions. [2021-03-25 08:41:13,962 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 587 places, 1607 transitions, 49885 flow [2021-03-25 08:41:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:41:13,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:41:13,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 162 transitions. [2021-03-25 08:41:13,963 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12180451127819548 [2021-03-25 08:41:13,963 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 162 transitions. [2021-03-25 08:41:13,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 162 transitions. [2021-03-25 08:41:13,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:41:13,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 162 transitions. [2021-03-25 08:41:13,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.2) internal successors, (162), 10 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:13,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:13,964 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:13,964 INFO L185 Difference]: Start difference. First operand has 578 places, 1599 transitions, 46155 flow. Second operand 10 states and 162 transitions. [2021-03-25 08:41:13,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 587 places, 1607 transitions, 49885 flow [2021-03-25 08:41:16,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 1607 transitions, 48878 flow, removed 457 selfloop flow, removed 5 redundant places. [2021-03-25 08:41:16,251 INFO L241 Difference]: Finished difference. Result has 586 places, 1605 transitions, 45721 flow [2021-03-25 08:41:16,252 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=45197, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=45721, PETRI_PLACES=586, PETRI_TRANSITIONS=1605} [2021-03-25 08:41:16,252 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 571 predicate places. [2021-03-25 08:41:16,252 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:41:16,252 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 586 places, 1605 transitions, 45721 flow [2021-03-25 08:41:16,252 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 586 places, 1605 transitions, 45721 flow [2021-03-25 08:41:16,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 586 places, 1605 transitions, 45721 flow [2021-03-25 08:41:17,454 INFO L129 PetriNetUnfolder]: 1046/3526 cut-off events. [2021-03-25 08:41:17,454 INFO L130 PetriNetUnfolder]: For 161091/161131 co-relation queries the response was YES. [2021-03-25 08:41:17,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46638 conditions, 3526 events. 1046/3526 cut-off events. For 161091/161131 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 36828 event pairs, 2 based on Foata normal form. 1/3519 useless extension candidates. Maximal degree in co-relation 46304. Up to 1005 conditions per place. [2021-03-25 08:41:17,548 INFO L142 LiptonReduction]: Number of co-enabled transitions 806 [2021-03-25 08:41:18,264 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:41:18,264 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:41:18,264 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2012 [2021-03-25 08:41:18,265 INFO L480 AbstractCegarLoop]: Abstraction has has 585 places, 1604 transitions, 45748 flow [2021-03-25 08:41:18,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:18,265 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:41:18,265 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:41:18,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:18,465 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:41:18,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:41:18,466 INFO L82 PathProgramCache]: Analyzing trace with hash -958125234, now seen corresponding path program 1 times [2021-03-25 08:41:18,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:41:18,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910793843] [2021-03-25 08:41:18,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:41:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:18,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:18,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:18,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:18,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:18,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910793843] [2021-03-25 08:41:18,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862284553] [2021-03-25 08:41:18,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:18,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:41:18,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:41:18,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:18,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:18,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:18,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:18,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:18,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:18,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:18,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:18,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:18,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:18,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:18,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:18,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:18,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:18,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:41:18,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:41:18,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:18,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:18,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:18,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:18,528 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:41:18,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:18,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:18,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:18,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:18,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:18,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:18,530 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:41:18,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:18,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:18,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:41:18,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:41:18,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709172193] [2021-03-25 08:41:18,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:41:18,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:41:18,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:41:18,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:41:18,536 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 135 [2021-03-25 08:41:18,536 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 1604 transitions, 45748 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:18,536 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:41:18,536 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 135 [2021-03-25 08:41:18,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:41:21,337 INFO L129 PetriNetUnfolder]: 1045/3485 cut-off events. [2021-03-25 08:41:21,337 INFO L130 PetriNetUnfolder]: For 166207/169106 co-relation queries the response was YES. [2021-03-25 08:41:21,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49453 conditions, 3485 events. 1045/3485 cut-off events. For 166207/169106 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 36164 event pairs, 2 based on Foata normal form. 17/3494 useless extension candidates. Maximal degree in co-relation 49115. Up to 2731 conditions per place. [2021-03-25 08:41:21,410 INFO L132 encePairwiseOnDemand]: 94/135 looper letters, 1475 selfloop transitions, 128 changer transitions 1/1608 dead transitions. [2021-03-25 08:41:21,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1608 transitions, 49059 flow [2021-03-25 08:41:21,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:41:21,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:41:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 154 transitions. [2021-03-25 08:41:21,411 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12674897119341563 [2021-03-25 08:41:21,411 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 154 transitions. [2021-03-25 08:41:21,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 154 transitions. [2021-03-25 08:41:21,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:41:21,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 154 transitions. [2021-03-25 08:41:21,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:21,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:21,412 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:21,412 INFO L185 Difference]: Start difference. First operand has 585 places, 1604 transitions, 45748 flow. Second operand 9 states and 154 transitions. [2021-03-25 08:41:21,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1608 transitions, 49059 flow [2021-03-25 08:41:23,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 1608 transitions, 48679 flow, removed 48 selfloop flow, removed 6 redundant places. [2021-03-25 08:41:23,622 INFO L241 Difference]: Finished difference. Result has 587 places, 1602 transitions, 45546 flow [2021-03-25 08:41:23,623 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=45347, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=45546, PETRI_PLACES=587, PETRI_TRANSITIONS=1602} [2021-03-25 08:41:23,623 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 572 predicate places. [2021-03-25 08:41:23,623 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:41:23,623 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 587 places, 1602 transitions, 45546 flow [2021-03-25 08:41:23,623 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 587 places, 1602 transitions, 45546 flow [2021-03-25 08:41:23,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 586 places, 1602 transitions, 45546 flow [2021-03-25 08:41:24,736 INFO L129 PetriNetUnfolder]: 1045/3522 cut-off events. [2021-03-25 08:41:24,736 INFO L130 PetriNetUnfolder]: For 160955/161344 co-relation queries the response was YES. [2021-03-25 08:41:24,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46373 conditions, 3522 events. 1045/3522 cut-off events. For 160955/161344 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 36932 event pairs, 2 based on Foata normal form. 0/3514 useless extension candidates. Maximal degree in co-relation 46043. Up to 1004 conditions per place. [2021-03-25 08:41:24,848 INFO L142 LiptonReduction]: Number of co-enabled transitions 800 [2021-03-25 08:41:25,117 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:41:25,117 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:41:25,117 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1494 [2021-03-25 08:41:25,117 INFO L480 AbstractCegarLoop]: Abstraction has has 586 places, 1602 transitions, 45546 flow [2021-03-25 08:41:25,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:25,117 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:41:25,117 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:41:25,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:25,318 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:41:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:41:25,318 INFO L82 PathProgramCache]: Analyzing trace with hash -111377504, now seen corresponding path program 1 times [2021-03-25 08:41:25,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:41:25,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723714240] [2021-03-25 08:41:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:41:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:25,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:25,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,339 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:41:25,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:25,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723714240] [2021-03-25 08:41:25,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015775662] [2021-03-25 08:41:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:25,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:41:25,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:41:25,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:25,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:25,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:25,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:25,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:25,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:25,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:25,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:25,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:25,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:25,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:25,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:25,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:25,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:25,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:25,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:25,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:25,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:25,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:41:25,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-03-25 08:41:25,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700792765] [2021-03-25 08:41:25,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:41:25,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:41:25,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:41:25,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:41:25,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 135 [2021-03-25 08:41:25,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 586 places, 1602 transitions, 45546 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:25,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:41:25,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 135 [2021-03-25 08:41:25,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:41:28,031 INFO L129 PetriNetUnfolder]: 1067/3555 cut-off events. [2021-03-25 08:41:28,032 INFO L130 PetriNetUnfolder]: For 172750/173169 co-relation queries the response was YES. [2021-03-25 08:41:28,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50925 conditions, 3555 events. 1067/3555 cut-off events. For 172750/173169 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 37064 event pairs, 2 based on Foata normal form. 12/3559 useless extension candidates. Maximal degree in co-relation 50409. Up to 2851 conditions per place. [2021-03-25 08:41:28,099 INFO L132 encePairwiseOnDemand]: 99/135 looper letters, 1578 selfloop transitions, 63 changer transitions 1/1646 dead transitions. [2021-03-25 08:41:28,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1646 transitions, 51319 flow [2021-03-25 08:41:28,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:41:28,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:41:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2021-03-25 08:41:28,100 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15185185185185185 [2021-03-25 08:41:28,100 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 123 transitions. [2021-03-25 08:41:28,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 123 transitions. [2021-03-25 08:41:28,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:41:28,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 123 transitions. [2021-03-25 08:41:28,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:28,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:28,101 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:28,101 INFO L185 Difference]: Start difference. First operand has 586 places, 1602 transitions, 45546 flow. Second operand 6 states and 123 transitions. [2021-03-25 08:41:28,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 1646 transitions, 51319 flow [2021-03-25 08:41:30,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 584 places, 1646 transitions, 51067 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-03-25 08:41:30,416 INFO L241 Difference]: Finished difference. Result has 587 places, 1629 transitions, 47069 flow [2021-03-25 08:41:30,417 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=45294, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1550, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=47069, PETRI_PLACES=587, PETRI_TRANSITIONS=1629} [2021-03-25 08:41:30,417 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 572 predicate places. [2021-03-25 08:41:30,417 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:41:30,417 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 587 places, 1629 transitions, 47069 flow [2021-03-25 08:41:30,417 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 587 places, 1629 transitions, 47069 flow [2021-03-25 08:41:30,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 587 places, 1629 transitions, 47069 flow [2021-03-25 08:41:31,600 INFO L129 PetriNetUnfolder]: 1067/3595 cut-off events. [2021-03-25 08:41:31,600 INFO L130 PetriNetUnfolder]: For 172040/172066 co-relation queries the response was YES. [2021-03-25 08:41:31,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48384 conditions, 3595 events. 1067/3595 cut-off events. For 172040/172066 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 37745 event pairs, 2 based on Foata normal form. 0/3587 useless extension candidates. Maximal degree in co-relation 47875. Up to 1027 conditions per place. [2021-03-25 08:41:31,704 INFO L142 LiptonReduction]: Number of co-enabled transitions 828 [2021-03-25 08:41:32,457 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:41:32,458 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:41:32,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2041 [2021-03-25 08:41:32,458 INFO L480 AbstractCegarLoop]: Abstraction has has 587 places, 1629 transitions, 47118 flow [2021-03-25 08:41:32,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:32,458 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:41:32,458 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:41:32,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2021-03-25 08:41:32,659 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:41:32,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:41:32,659 INFO L82 PathProgramCache]: Analyzing trace with hash 841489168, now seen corresponding path program 1 times [2021-03-25 08:41:32,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:41:32,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236424950] [2021-03-25 08:41:32,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:41:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:32,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:32,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:32,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:32,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:32,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:32,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:32,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236424950] [2021-03-25 08:41:32,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371667776] [2021-03-25 08:41:32,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:32,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:41:32,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:41:32,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:32,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:32,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:32,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:32,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:32,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:32,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:32,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:32,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:32,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:32,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:32,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:32,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:32,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:32,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:41:32,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:41:32,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:32,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:32,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:41:32,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:32,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:32,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:41:32,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:41:32,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:41:32,746 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:41:32,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:32,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:32,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:32,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:32,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:32,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:32,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:32,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:32,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:32,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:32,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:32,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:32,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:41:32,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:32,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:32,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:41:32,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:41:32,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:41:32,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:32,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:41:32,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:41:32,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:32,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:32,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:41:32,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:32,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:32,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:41:32,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 08:41:32,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346838594] [2021-03-25 08:41:32,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:41:32,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:41:32,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:41:32,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:41:32,772 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 136 [2021-03-25 08:41:32,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 1629 transitions, 47118 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:32,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:41:32,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 136 [2021-03-25 08:41:32,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:41:35,695 INFO L129 PetriNetUnfolder]: 1066/3573 cut-off events. [2021-03-25 08:41:35,695 INFO L130 PetriNetUnfolder]: For 180752/183791 co-relation queries the response was YES. [2021-03-25 08:41:35,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51482 conditions, 3573 events. 1066/3573 cut-off events. For 180752/183791 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 37351 event pairs, 0 based on Foata normal form. 17/3582 useless extension candidates. Maximal degree in co-relation 50956. Up to 1032 conditions per place. [2021-03-25 08:41:35,774 INFO L132 encePairwiseOnDemand]: 93/136 looper letters, 801 selfloop transitions, 907 changer transitions 3/1715 dead transitions. [2021-03-25 08:41:35,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 1715 transitions, 53985 flow [2021-03-25 08:41:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-25 08:41:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-25 08:41:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 289 transitions. [2021-03-25 08:41:35,776 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10625 [2021-03-25 08:41:35,776 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 289 transitions. [2021-03-25 08:41:35,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 289 transitions. [2021-03-25 08:41:35,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:41:35,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 289 transitions. [2021-03-25 08:41:35,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 14.45) internal successors, (289), 20 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:35,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 136.0) internal successors, (2856), 21 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:35,777 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 136.0) internal successors, (2856), 21 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:35,777 INFO L185 Difference]: Start difference. First operand has 587 places, 1629 transitions, 47118 flow. Second operand 20 states and 289 transitions. [2021-03-25 08:41:35,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 606 places, 1715 transitions, 53985 flow [2021-03-25 08:41:38,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 1715 transitions, 53076 flow, removed 437 selfloop flow, removed 1 redundant places. [2021-03-25 08:41:38,079 INFO L241 Difference]: Finished difference. Result has 608 places, 1644 transitions, 49663 flow [2021-03-25 08:41:38,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=46136, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=890, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=49663, PETRI_PLACES=608, PETRI_TRANSITIONS=1644} [2021-03-25 08:41:38,080 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 593 predicate places. [2021-03-25 08:41:38,080 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:41:38,080 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 608 places, 1644 transitions, 49663 flow [2021-03-25 08:41:38,080 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 608 places, 1644 transitions, 49663 flow [2021-03-25 08:41:38,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 606 places, 1644 transitions, 49663 flow [2021-03-25 08:41:39,253 INFO L129 PetriNetUnfolder]: 1066/3591 cut-off events. [2021-03-25 08:41:39,253 INFO L130 PetriNetUnfolder]: For 175950/175983 co-relation queries the response was YES. [2021-03-25 08:41:39,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50047 conditions, 3591 events. 1066/3591 cut-off events. For 175950/175983 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 37795 event pairs, 2 based on Foata normal form. 0/3583 useless extension candidates. Maximal degree in co-relation 49538. Up to 1031 conditions per place. [2021-03-25 08:41:39,360 INFO L142 LiptonReduction]: Number of co-enabled transitions 832 [2021-03-25 08:41:39,638 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:41:39,639 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:41:39,639 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1559 [2021-03-25 08:41:39,639 INFO L480 AbstractCegarLoop]: Abstraction has has 606 places, 1644 transitions, 49663 flow [2021-03-25 08:41:39,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:39,639 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:41:39,639 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:41:39,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:39,840 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:41:39,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:41:39,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1928797606, now seen corresponding path program 1 times [2021-03-25 08:41:39,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:41:39,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511151973] [2021-03-25 08:41:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:41:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:39,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:39,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:39,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:39,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511151973] [2021-03-25 08:41:39,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057731130] [2021-03-25 08:41:39,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:39,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:41:39,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:41:39,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:39,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:39,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:39,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:39,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:39,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:39,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:39,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:39,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:39,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:39,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:39,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:39,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:39,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:39,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:39,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:39,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:39,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:39,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:39,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:39,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:39,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:39,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:39,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:39,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:39,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:39,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:41:39,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:41:39,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:39,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:41:39,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:41:39,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:39,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:39,908 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:41:39,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:41:39,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:39,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:41:39,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:41:39,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:39,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:39,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:39,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:39,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:39,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:39,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:39,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:39,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:39,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:41:39,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:41:39,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842198221] [2021-03-25 08:41:39,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:41:39,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:41:39,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:41:39,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:41:39,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 136 [2021-03-25 08:41:39,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 1644 transitions, 49663 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:39,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:41:39,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 136 [2021-03-25 08:41:39,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:41:42,856 INFO L129 PetriNetUnfolder]: 1068/3564 cut-off events. [2021-03-25 08:41:42,856 INFO L130 PetriNetUnfolder]: For 181177/181209 co-relation queries the response was YES. [2021-03-25 08:41:42,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53112 conditions, 3564 events. 1068/3564 cut-off events. For 181177/181209 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 37167 event pairs, 2 based on Foata normal form. 9/3565 useless extension candidates. Maximal degree in co-relation 52529. Up to 2874 conditions per place. [2021-03-25 08:41:42,919 INFO L132 encePairwiseOnDemand]: 98/136 looper letters, 1584 selfloop transitions, 63 changer transitions 0/1651 dead transitions. [2021-03-25 08:41:42,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 1651 transitions, 53429 flow [2021-03-25 08:41:42,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:41:42,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:41:42,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 151 transitions. [2021-03-25 08:41:42,920 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12336601307189543 [2021-03-25 08:41:42,920 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 151 transitions. [2021-03-25 08:41:42,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 151 transitions. [2021-03-25 08:41:42,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:41:42,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 151 transitions. [2021-03-25 08:41:42,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:42,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:42,921 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:42,921 INFO L185 Difference]: Start difference. First operand has 606 places, 1644 transitions, 49663 flow. Second operand 9 states and 151 transitions. [2021-03-25 08:41:42,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 1651 transitions, 53429 flow [2021-03-25 08:41:45,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 602 places, 1651 transitions, 52525 flow, removed 227 selfloop flow, removed 12 redundant places. [2021-03-25 08:41:45,426 INFO L241 Difference]: Finished difference. Result has 606 places, 1649 transitions, 49277 flow [2021-03-25 08:41:45,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=48767, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=49277, PETRI_PLACES=606, PETRI_TRANSITIONS=1649} [2021-03-25 08:41:45,427 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 591 predicate places. [2021-03-25 08:41:45,427 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:41:45,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 606 places, 1649 transitions, 49277 flow [2021-03-25 08:41:45,427 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 606 places, 1649 transitions, 49277 flow [2021-03-25 08:41:45,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 606 places, 1649 transitions, 49277 flow [2021-03-25 08:41:46,641 INFO L129 PetriNetUnfolder]: 1068/3604 cut-off events. [2021-03-25 08:41:46,641 INFO L130 PetriNetUnfolder]: For 166572/166632 co-relation queries the response was YES. [2021-03-25 08:41:46,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49031 conditions, 3604 events. 1068/3604 cut-off events. For 166572/166632 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 37972 event pairs, 2 based on Foata normal form. 0/3596 useless extension candidates. Maximal degree in co-relation 48687. Up to 1013 conditions per place. [2021-03-25 08:41:46,751 INFO L142 LiptonReduction]: Number of co-enabled transitions 836 [2021-03-25 08:41:47,067 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:41:47,068 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:41:47,068 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1641 [2021-03-25 08:41:47,068 INFO L480 AbstractCegarLoop]: Abstraction has has 606 places, 1649 transitions, 49277 flow [2021-03-25 08:41:47,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:47,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:41:47,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:41:47,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:47,269 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:41:47,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:41:47,269 INFO L82 PathProgramCache]: Analyzing trace with hash -337591862, now seen corresponding path program 1 times [2021-03-25 08:41:47,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:41:47,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85123167] [2021-03-25 08:41:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:41:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:47,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:47,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,301 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:41:47,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:47,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85123167] [2021-03-25 08:41:47,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477412064] [2021-03-25 08:41:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:41:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:47,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:41:47,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:41:47,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:47,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:47,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:47,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:47,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:47,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:47,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:47,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:47,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:47,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:47,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:47,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:47,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:47,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:41:47,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:41:47,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:41:47,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:47,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:47,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:47,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:47,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:41:47,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:47,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:41:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:47,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:41:47,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:41:47,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19929589] [2021-03-25 08:41:47,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:41:47,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:41:47,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:41:47,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:41:47,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 136 [2021-03-25 08:41:47,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 1649 transitions, 49277 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:47,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:41:47,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 136 [2021-03-25 08:41:47,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:41:50,141 INFO L129 PetriNetUnfolder]: 1090/3642 cut-off events. [2021-03-25 08:41:50,141 INFO L130 PetriNetUnfolder]: For 180204/180235 co-relation queries the response was YES. [2021-03-25 08:41:50,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53767 conditions, 3642 events. 1090/3642 cut-off events. For 180204/180235 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 38172 event pairs, 2 based on Foata normal form. 9/3643 useless extension candidates. Maximal degree in co-relation 53231. Up to 2914 conditions per place. [2021-03-25 08:41:50,217 INFO L132 encePairwiseOnDemand]: 99/136 looper letters, 1619 selfloop transitions, 70 changer transitions 1/1694 dead transitions. [2021-03-25 08:41:50,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 1694 transitions, 55341 flow [2021-03-25 08:41:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:41:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:41:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2021-03-25 08:41:50,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13511029411764705 [2021-03-25 08:41:50,218 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 147 transitions. [2021-03-25 08:41:50,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 147 transitions. [2021-03-25 08:41:50,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:41:50,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 147 transitions. [2021-03-25 08:41:50,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:50,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:50,219 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:50,219 INFO L185 Difference]: Start difference. First operand has 606 places, 1649 transitions, 49277 flow. Second operand 8 states and 147 transitions. [2021-03-25 08:41:50,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 1694 transitions, 55341 flow [2021-03-25 08:41:52,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 1694 transitions, 55077 flow, removed 88 selfloop flow, removed 4 redundant places. [2021-03-25 08:41:52,707 INFO L241 Difference]: Finished difference. Result has 613 places, 1677 transitions, 50963 flow [2021-03-25 08:41:52,707 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=49106, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=50963, PETRI_PLACES=613, PETRI_TRANSITIONS=1677} [2021-03-25 08:41:52,707 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 598 predicate places. [2021-03-25 08:41:52,707 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:41:52,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 613 places, 1677 transitions, 50963 flow [2021-03-25 08:41:52,708 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 613 places, 1677 transitions, 50963 flow [2021-03-25 08:41:52,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 613 places, 1677 transitions, 50963 flow [2021-03-25 08:41:54,002 INFO L129 PetriNetUnfolder]: 1090/3678 cut-off events. [2021-03-25 08:41:54,002 INFO L130 PetriNetUnfolder]: For 181914/181948 co-relation queries the response was YES. [2021-03-25 08:41:54,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51166 conditions, 3678 events. 1090/3678 cut-off events. For 181914/181948 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 38804 event pairs, 2 based on Foata normal form. 0/3670 useless extension candidates. Maximal degree in co-relation 50822. Up to 1035 conditions per place. [2021-03-25 08:41:54,100 INFO L142 LiptonReduction]: Number of co-enabled transitions 866 [2021-03-25 08:41:55,389 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:41:55,389 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:41:55,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2682 [2021-03-25 08:41:55,389 INFO L480 AbstractCegarLoop]: Abstraction has has 610 places, 1674 transitions, 50990 flow [2021-03-25 08:41:55,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:55,389 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:41:55,389 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:41:55,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-03-25 08:41:55,590 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:41:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:41:55,590 INFO L82 PathProgramCache]: Analyzing trace with hash 2080845600, now seen corresponding path program 2 times [2021-03-25 08:41:55,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:41:55,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757239744] [2021-03-25 08:41:55,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:41:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:41:55,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:41:55,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:55,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:55,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:41:55,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,623 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:55,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757239744] [2021-03-25 08:41:55,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339022795] [2021-03-25 08:41:55,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:41:55,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:41:55,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:41:55,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:41:55,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:41:55,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:41:55,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:55,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:55,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:55,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:55,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:41:55,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:41:55,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:41:55,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:41:55,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:55,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:55,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:41:55,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:55,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:55,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:41:55,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:41:55,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:41:55,666 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:41:55,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:41:55,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:55,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:41:55,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:41:55,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:41:55,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:41:55,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:55,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:41:55,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:55,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:55,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:41:55,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:41:55,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:55,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:41:55,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:55,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:41:55,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:41:55,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:41:55,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:41:55,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:41:55,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:41:55,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:41:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:41:55,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:41:55,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 08:41:55,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079050414] [2021-03-25 08:41:55,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:41:55,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:41:55,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:41:55,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:41:55,705 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 140 [2021-03-25 08:41:55,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 1674 transitions, 50990 flow. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:41:55,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:41:55,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 140 [2021-03-25 08:41:55,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:42:00,306 INFO L129 PetriNetUnfolder]: 1184/4050 cut-off events. [2021-03-25 08:42:00,306 INFO L130 PetriNetUnfolder]: For 237529/238409 co-relation queries the response was YES. [2021-03-25 08:42:00,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63140 conditions, 4050 events. 1184/4050 cut-off events. For 237529/238409 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 43965 event pairs, 0 based on Foata normal form. 74/4116 useless extension candidates. Maximal degree in co-relation 62720. Up to 1147 conditions per place. [2021-03-25 08:42:00,388 INFO L132 encePairwiseOnDemand]: 96/140 looper letters, 839 selfloop transitions, 1107 changer transitions 10/1960 dead transitions. [2021-03-25 08:42:00,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 1960 transitions, 68881 flow [2021-03-25 08:42:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-25 08:42:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-03-25 08:42:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 422 transitions. [2021-03-25 08:42:00,390 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10047619047619048 [2021-03-25 08:42:00,390 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 422 transitions. [2021-03-25 08:42:00,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 422 transitions. [2021-03-25 08:42:00,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:42:00,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 422 transitions. [2021-03-25 08:42:00,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 14.066666666666666) internal successors, (422), 30 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:00,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 140.0) internal successors, (4340), 31 states have internal predecessors, (4340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:00,393 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 140.0) internal successors, (4340), 31 states have internal predecessors, (4340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:00,393 INFO L185 Difference]: Start difference. First operand has 610 places, 1674 transitions, 50990 flow. Second operand 30 states and 422 transitions. [2021-03-25 08:42:00,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 1960 transitions, 68881 flow [2021-03-25 08:42:03,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 1960 transitions, 67804 flow, removed 516 selfloop flow, removed 5 redundant places. [2021-03-25 08:42:03,232 INFO L241 Difference]: Finished difference. Result has 646 places, 1932 transitions, 66748 flow [2021-03-25 08:42:03,233 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=49070, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=821, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=753, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=66748, PETRI_PLACES=646, PETRI_TRANSITIONS=1932} [2021-03-25 08:42:03,235 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 631 predicate places. [2021-03-25 08:42:03,235 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:42:03,236 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 646 places, 1932 transitions, 66748 flow [2021-03-25 08:42:03,236 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 646 places, 1932 transitions, 66748 flow [2021-03-25 08:42:03,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 646 places, 1932 transitions, 66748 flow [2021-03-25 08:42:04,978 INFO L129 PetriNetUnfolder]: 1183/4058 cut-off events. [2021-03-25 08:42:04,978 INFO L130 PetriNetUnfolder]: For 232306/232306 co-relation queries the response was YES. [2021-03-25 08:42:05,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61389 conditions, 4058 events. 1183/4058 cut-off events. For 232306/232306 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 44355 event pairs, 0 based on Foata normal form. 0/4050 useless extension candidates. Maximal degree in co-relation 60877. Up to 1142 conditions per place. [2021-03-25 08:42:05,090 INFO L142 LiptonReduction]: Number of co-enabled transitions 1048 [2021-03-25 08:42:06,139 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:42:06,139 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 08:42:06,139 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2904 [2021-03-25 08:42:06,140 INFO L480 AbstractCegarLoop]: Abstraction has has 646 places, 1932 transitions, 66863 flow [2021-03-25 08:42:06,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:06,140 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:42:06,140 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:42:06,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-03-25 08:42:06,340 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:42:06,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:42:06,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1636890130, now seen corresponding path program 1 times [2021-03-25 08:42:06,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:42:06,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604451999] [2021-03-25 08:42:06,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:42:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:06,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:06,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:06,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:06,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:06,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604451999] [2021-03-25 08:42:06,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683829018] [2021-03-25 08:42:06,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:42:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:06,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:42:06,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:42:06,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:06,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:06,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:06,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:06,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:06,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:06,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:06,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:06,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:06,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:06,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:06,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:06,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:06,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:06,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:42:06,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:42:06,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:06,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:06,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:06,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:06,423 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:42:06,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:06,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:06,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:06,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:06,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:06,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:06,426 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:42:06,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:06,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:06,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:42:06,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:42:06,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206906174] [2021-03-25 08:42:06,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:42:06,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:42:06,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:42:06,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:42:06,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 145 [2021-03-25 08:42:06,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 1932 transitions, 66863 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:06,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:42:06,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 145 [2021-03-25 08:42:06,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:42:10,761 INFO L129 PetriNetUnfolder]: 1182/4034 cut-off events. [2021-03-25 08:42:10,761 INFO L130 PetriNetUnfolder]: For 241435/244387 co-relation queries the response was YES. [2021-03-25 08:42:10,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64673 conditions, 4034 events. 1182/4034 cut-off events. For 241435/244387 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 43703 event pairs, 0 based on Foata normal form. 38/4064 useless extension candidates. Maximal degree in co-relation 64145. Up to 3132 conditions per place. [2021-03-25 08:42:10,842 INFO L132 encePairwiseOnDemand]: 102/145 looper letters, 1800 selfloop transitions, 131 changer transitions 1/1936 dead transitions. [2021-03-25 08:42:10,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 1936 transitions, 70842 flow [2021-03-25 08:42:10,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:42:10,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:42:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 160 transitions. [2021-03-25 08:42:10,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12260536398467432 [2021-03-25 08:42:10,848 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 160 transitions. [2021-03-25 08:42:10,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 160 transitions. [2021-03-25 08:42:10,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:42:10,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 160 transitions. [2021-03-25 08:42:10,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:10,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 145.0) internal successors, (1450), 10 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:10,854 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 145.0) internal successors, (1450), 10 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:10,854 INFO L185 Difference]: Start difference. First operand has 646 places, 1932 transitions, 66863 flow. Second operand 9 states and 160 transitions. [2021-03-25 08:42:10,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 654 places, 1936 transitions, 70842 flow [2021-03-25 08:42:14,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 1936 transitions, 64805 flow, removed 2955 selfloop flow, removed 6 redundant places. [2021-03-25 08:42:14,399 INFO L241 Difference]: Finished difference. Result has 648 places, 1930 transitions, 61010 flow [2021-03-25 08:42:14,400 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=60808, PETRI_DIFFERENCE_MINUEND_PLACES=640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1931, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1800, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=61010, PETRI_PLACES=648, PETRI_TRANSITIONS=1930} [2021-03-25 08:42:14,400 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 633 predicate places. [2021-03-25 08:42:14,400 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:42:14,400 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 648 places, 1930 transitions, 61010 flow [2021-03-25 08:42:14,400 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 648 places, 1930 transitions, 61010 flow [2021-03-25 08:42:14,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 647 places, 1930 transitions, 61010 flow [2021-03-25 08:42:15,940 INFO L129 PetriNetUnfolder]: 1182/4008 cut-off events. [2021-03-25 08:42:15,940 INFO L130 PetriNetUnfolder]: For 165293/165293 co-relation queries the response was YES. [2021-03-25 08:42:16,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53803 conditions, 4008 events. 1182/4008 cut-off events. For 165293/165293 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 43613 event pairs, 0 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 53373. Up to 874 conditions per place. [2021-03-25 08:42:16,050 INFO L142 LiptonReduction]: Number of co-enabled transitions 1044 [2021-03-25 08:42:16,423 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:42:16,424 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:42:16,424 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2024 [2021-03-25 08:42:16,424 INFO L480 AbstractCegarLoop]: Abstraction has has 647 places, 1930 transitions, 61010 flow [2021-03-25 08:42:16,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:16,424 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:42:16,424 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:42:16,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-03-25 08:42:16,624 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:42:16,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:42:16,625 INFO L82 PathProgramCache]: Analyzing trace with hash 125037227, now seen corresponding path program 1 times [2021-03-25 08:42:16,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:42:16,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790197313] [2021-03-25 08:42:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:42:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:16,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:16,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:16,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:16,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790197313] [2021-03-25 08:42:16,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865362016] [2021-03-25 08:42:16,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:42:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:16,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:42:16,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:42:16,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:16,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:16,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:16,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:16,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:16,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:16,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:16,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:16,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:16,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:16,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:16,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:16,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:16,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:16,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:16,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:16,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:16,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:16,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:16,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:16,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:16,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:16,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:16,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:16,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:16,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:16,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:42:16,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:42:16,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:16,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:42:16,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:42:16,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:16,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:16,702 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:42:16,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:42:16,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:16,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:42:16,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:42:16,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:16,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:16,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:16,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:16,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:16,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:16,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:16,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:16,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:16,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:42:16,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:42:16,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260681376] [2021-03-25 08:42:16,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:42:16,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:42:16,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:42:16,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:42:16,711 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 145 [2021-03-25 08:42:16,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 647 places, 1930 transitions, 61010 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:16,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:42:16,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 145 [2021-03-25 08:42:16,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:42:20,257 INFO L129 PetriNetUnfolder]: 1186/4046 cut-off events. [2021-03-25 08:42:20,257 INFO L130 PetriNetUnfolder]: For 176279/177692 co-relation queries the response was YES. [2021-03-25 08:42:20,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57403 conditions, 4046 events. 1186/4046 cut-off events. For 176279/177692 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 43851 event pairs, 0 based on Foata normal form. 15/4053 useless extension candidates. Maximal degree in co-relation 56955. Up to 3201 conditions per place. [2021-03-25 08:42:20,509 INFO L132 encePairwiseOnDemand]: 106/145 looper letters, 1860 selfloop transitions, 83 changer transitions 0/1947 dead transitions. [2021-03-25 08:42:20,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 1947 transitions, 66002 flow [2021-03-25 08:42:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:42:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:42:20,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 156 transitions. [2021-03-25 08:42:20,510 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11954022988505747 [2021-03-25 08:42:20,510 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 156 transitions. [2021-03-25 08:42:20,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 156 transitions. [2021-03-25 08:42:20,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:42:20,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 156 transitions. [2021-03-25 08:42:20,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:20,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 145.0) internal successors, (1450), 10 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:20,511 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 145.0) internal successors, (1450), 10 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:20,511 INFO L185 Difference]: Start difference. First operand has 647 places, 1930 transitions, 61010 flow. Second operand 9 states and 156 transitions. [2021-03-25 08:42:20,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 655 places, 1947 transitions, 66002 flow [2021-03-25 08:42:23,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 1947 transitions, 65708 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-03-25 08:42:23,331 INFO L241 Difference]: Finished difference. Result has 651 places, 1939 transitions, 61691 flow [2021-03-25 08:42:23,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=60720, PETRI_DIFFERENCE_MINUEND_PLACES=640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1930, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=61691, PETRI_PLACES=651, PETRI_TRANSITIONS=1939} [2021-03-25 08:42:23,332 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 636 predicate places. [2021-03-25 08:42:23,332 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:42:23,332 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 651 places, 1939 transitions, 61691 flow [2021-03-25 08:42:23,332 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 651 places, 1939 transitions, 61691 flow [2021-03-25 08:42:23,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 651 places, 1939 transitions, 61691 flow [2021-03-25 08:42:24,757 INFO L129 PetriNetUnfolder]: 1186/4019 cut-off events. [2021-03-25 08:42:24,757 INFO L130 PetriNetUnfolder]: For 171125/171405 co-relation queries the response was YES. [2021-03-25 08:42:24,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54095 conditions, 4019 events. 1186/4019 cut-off events. For 171125/171405 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 43761 event pairs, 0 based on Foata normal form. 0/4011 useless extension candidates. Maximal degree in co-relation 53662. Up to 877 conditions per place. [2021-03-25 08:42:24,883 INFO L142 LiptonReduction]: Number of co-enabled transitions 1050 [2021-03-25 08:42:26,824 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:42:26,825 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:42:26,825 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3493 [2021-03-25 08:42:26,825 INFO L480 AbstractCegarLoop]: Abstraction has has 651 places, 1939 transitions, 61896 flow [2021-03-25 08:42:26,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:26,825 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:42:26,825 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:42:27,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-03-25 08:42:27,026 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:42:27,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:42:27,026 INFO L82 PathProgramCache]: Analyzing trace with hash 519278233, now seen corresponding path program 1 times [2021-03-25 08:42:27,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:42:27,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997088000] [2021-03-25 08:42:27,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:42:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:27,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:27,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:42:27,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:27,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997088000] [2021-03-25 08:42:27,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197782096] [2021-03-25 08:42:27,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:42:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:27,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:42:27,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:42:27,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:27,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:27,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:27,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:27,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:27,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:27,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:27,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:27,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:27,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:27,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:27,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:27,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:42:27,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:42:27,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:42:27,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:42:27,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:27,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:42:27,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:42:27,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:42:27,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:42:27,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:27,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:42:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:27,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:42:27,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:42:27,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420909298] [2021-03-25 08:42:27,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:42:27,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:42:27,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:42:27,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:42:27,179 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 149 [2021-03-25 08:42:27,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 1939 transitions, 61896 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:27,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:42:27,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 149 [2021-03-25 08:42:27,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:42:31,390 INFO L129 PetriNetUnfolder]: 1185/4063 cut-off events. [2021-03-25 08:42:31,390 INFO L130 PetriNetUnfolder]: For 177620/178839 co-relation queries the response was YES. [2021-03-25 08:42:31,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57735 conditions, 4063 events. 1185/4063 cut-off events. For 177620/178839 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 44085 event pairs, 0 based on Foata normal form. 71/4125 useless extension candidates. Maximal degree in co-relation 57284. Up to 3210 conditions per place. [2021-03-25 08:42:31,487 INFO L132 encePairwiseOnDemand]: 109/149 looper letters, 1885 selfloop transitions, 70 changer transitions 1/1960 dead transitions. [2021-03-25 08:42:31,488 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 1960 transitions, 66590 flow [2021-03-25 08:42:31,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:42:31,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:42:31,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-25 08:42:31,489 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13003355704697986 [2021-03-25 08:42:31,489 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-25 08:42:31,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-25 08:42:31,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:42:31,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-25 08:42:31,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:31,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:31,490 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:31,490 INFO L185 Difference]: Start difference. First operand has 651 places, 1939 transitions, 61896 flow. Second operand 8 states and 155 transitions. [2021-03-25 08:42:31,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 1960 transitions, 66590 flow [2021-03-25 08:42:34,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 654 places, 1960 transitions, 66243 flow, removed 105 selfloop flow, removed 4 redundant places. [2021-03-25 08:42:34,592 INFO L241 Difference]: Finished difference. Result has 656 places, 1943 transitions, 61983 flow [2021-03-25 08:42:34,593 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=61549, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1870, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=61983, PETRI_PLACES=656, PETRI_TRANSITIONS=1943} [2021-03-25 08:42:34,593 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 641 predicate places. [2021-03-25 08:42:34,593 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:42:34,593 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 656 places, 1943 transitions, 61983 flow [2021-03-25 08:42:34,593 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 656 places, 1943 transitions, 61983 flow [2021-03-25 08:42:34,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 656 places, 1943 transitions, 61983 flow [2021-03-25 08:42:36,058 INFO L129 PetriNetUnfolder]: 1185/4032 cut-off events. [2021-03-25 08:42:36,059 INFO L130 PetriNetUnfolder]: For 173240/173290 co-relation queries the response was YES. [2021-03-25 08:42:36,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54658 conditions, 4032 events. 1185/4032 cut-off events. For 173240/173290 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 43967 event pairs, 0 based on Foata normal form. 0/4024 useless extension candidates. Maximal degree in co-relation 54216. Up to 882 conditions per place. [2021-03-25 08:42:36,192 INFO L142 LiptonReduction]: Number of co-enabled transitions 1058 [2021-03-25 08:42:38,042 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:42:38,042 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:42:38,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3449 [2021-03-25 08:42:38,042 INFO L480 AbstractCegarLoop]: Abstraction has has 653 places, 1941 transitions, 61961 flow [2021-03-25 08:42:38,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:38,043 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:42:38,043 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:42:38,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-03-25 08:42:38,243 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:42:38,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:42:38,243 INFO L82 PathProgramCache]: Analyzing trace with hash 186924528, now seen corresponding path program 1 times [2021-03-25 08:42:38,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:42:38,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673285193] [2021-03-25 08:42:38,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:42:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:38,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:38,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:38,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:38,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:38,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673285193] [2021-03-25 08:42:38,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973221048] [2021-03-25 08:42:38,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:42:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:38,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:42:38,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:42:38,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:38,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:38,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:38,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:38,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:38,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:38,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:38,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:38,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:38,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:38,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:38,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:38,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:38,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:38,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:38,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:38,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:38,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:38,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:38,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:38,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:38,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:38,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:38,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:38,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:38,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:38,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:42:38,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:42:38,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:38,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:42:38,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:42:38,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:38,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:42:38,349 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:42:38,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:42:38,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:42:38,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:42:38,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:42:38,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:38,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:38,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:38,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:38,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:38,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:38,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:38,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:38,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:38,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:42:38,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:42:38,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917108269] [2021-03-25 08:42:38,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:42:38,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:42:38,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:42:38,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:42:38,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 151 [2021-03-25 08:42:38,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 653 places, 1941 transitions, 61961 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:38,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:42:38,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 151 [2021-03-25 08:42:38,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:42:42,659 INFO L129 PetriNetUnfolder]: 1189/4062 cut-off events. [2021-03-25 08:42:42,659 INFO L130 PetriNetUnfolder]: For 178914/179039 co-relation queries the response was YES. [2021-03-25 08:42:42,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58244 conditions, 4062 events. 1189/4062 cut-off events. For 178914/179039 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 44089 event pairs, 0 based on Foata normal form. 22/4076 useless extension candidates. Maximal degree in co-relation 57784. Up to 3222 conditions per place. [2021-03-25 08:42:42,751 INFO L132 encePairwiseOnDemand]: 108/151 looper letters, 1872 selfloop transitions, 78 changer transitions 0/1954 dead transitions. [2021-03-25 08:42:42,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 1954 transitions, 66672 flow [2021-03-25 08:42:42,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:42:42,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:42:42,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 170 transitions. [2021-03-25 08:42:42,752 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11258278145695365 [2021-03-25 08:42:42,752 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 170 transitions. [2021-03-25 08:42:42,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 170 transitions. [2021-03-25 08:42:42,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:42:42,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 170 transitions. [2021-03-25 08:42:42,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.0) internal successors, (170), 10 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:42,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 151.0) internal successors, (1661), 11 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:42,753 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 151.0) internal successors, (1661), 11 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:42,753 INFO L185 Difference]: Start difference. First operand has 653 places, 1941 transitions, 61961 flow. Second operand 10 states and 170 transitions. [2021-03-25 08:42:42,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 1954 transitions, 66672 flow [2021-03-25 08:42:45,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 658 places, 1954 transitions, 65679 flow, removed 473 selfloop flow, removed 4 redundant places. [2021-03-25 08:42:45,826 INFO L241 Difference]: Finished difference. Result has 662 places, 1949 transitions, 61813 flow [2021-03-25 08:42:45,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=61020, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1863, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=61813, PETRI_PLACES=662, PETRI_TRANSITIONS=1949} [2021-03-25 08:42:45,827 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 647 predicate places. [2021-03-25 08:42:45,827 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:42:45,827 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 662 places, 1949 transitions, 61813 flow [2021-03-25 08:42:45,827 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 662 places, 1949 transitions, 61813 flow [2021-03-25 08:42:45,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 662 places, 1949 transitions, 61813 flow [2021-03-25 08:42:47,347 INFO L129 PetriNetUnfolder]: 1189/4039 cut-off events. [2021-03-25 08:42:47,347 INFO L130 PetriNetUnfolder]: For 172958/172998 co-relation queries the response was YES. [2021-03-25 08:42:47,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54182 conditions, 4039 events. 1189/4039 cut-off events. For 172958/172998 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 44068 event pairs, 0 based on Foata normal form. 0/4031 useless extension candidates. Maximal degree in co-relation 53744. Up to 871 conditions per place. [2021-03-25 08:42:47,486 INFO L142 LiptonReduction]: Number of co-enabled transitions 1060 [2021-03-25 08:42:49,413 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:42:49,413 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:42:49,413 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3586 [2021-03-25 08:42:49,414 INFO L480 AbstractCegarLoop]: Abstraction has has 661 places, 1948 transitions, 61948 flow [2021-03-25 08:42:49,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:49,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:42:49,414 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:42:49,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2021-03-25 08:42:49,614 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:42:49,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:42:49,615 INFO L82 PathProgramCache]: Analyzing trace with hash -924167226, now seen corresponding path program 1 times [2021-03-25 08:42:49,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:42:49,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381049885] [2021-03-25 08:42:49,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:42:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:49,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:49,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:49,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:49,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:49,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:49,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:42:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:49,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381049885] [2021-03-25 08:42:49,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:42:49,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:42:49,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662468790] [2021-03-25 08:42:49,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 08:42:49,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:42:49,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 08:42:49,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 08:42:49,627 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 155 [2021-03-25 08:42:49,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 1948 transitions, 61948 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:49,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:42:49,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 155 [2021-03-25 08:42:49,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:42:53,864 INFO L129 PetriNetUnfolder]: 1188/4068 cut-off events. [2021-03-25 08:42:53,865 INFO L130 PetriNetUnfolder]: For 173089/173096 co-relation queries the response was YES. [2021-03-25 08:42:53,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57569 conditions, 4068 events. 1188/4068 cut-off events. For 173089/173096 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 44131 event pairs, 0 based on Foata normal form. 8/4068 useless extension candidates. Maximal degree in co-relation 57113. Up to 3226 conditions per place. [2021-03-25 08:42:53,959 INFO L132 encePairwiseOnDemand]: 111/155 looper letters, 1905 selfloop transitions, 42 changer transitions 1/1952 dead transitions. [2021-03-25 08:42:53,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 664 places, 1952 transitions, 65955 flow [2021-03-25 08:42:53,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 08:42:53,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 08:42:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2021-03-25 08:42:53,960 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16774193548387098 [2021-03-25 08:42:53,961 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 104 transitions. [2021-03-25 08:42:53,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 104 transitions. [2021-03-25 08:42:53,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:42:53,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 104 transitions. [2021-03-25 08:42:53,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:53,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:53,961 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:53,961 INFO L185 Difference]: Start difference. First operand has 661 places, 1948 transitions, 61948 flow. Second operand 4 states and 104 transitions. [2021-03-25 08:42:53,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 664 places, 1952 transitions, 65955 flow [2021-03-25 08:42:57,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 658 places, 1952 transitions, 65714 flow, removed 70 selfloop flow, removed 6 redundant places. [2021-03-25 08:42:57,069 INFO L241 Difference]: Finished difference. Result has 658 places, 1946 transitions, 61709 flow [2021-03-25 08:42:57,070 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=61685, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1905, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=61709, PETRI_PLACES=658, PETRI_TRANSITIONS=1946} [2021-03-25 08:42:57,070 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 643 predicate places. [2021-03-25 08:42:57,070 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:42:57,070 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 658 places, 1946 transitions, 61709 flow [2021-03-25 08:42:57,070 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 658 places, 1946 transitions, 61709 flow [2021-03-25 08:42:57,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 657 places, 1946 transitions, 61709 flow [2021-03-25 08:42:58,491 INFO L129 PetriNetUnfolder]: 1188/4035 cut-off events. [2021-03-25 08:42:58,491 INFO L130 PetriNetUnfolder]: For 171446/171446 co-relation queries the response was YES. [2021-03-25 08:42:58,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54132 conditions, 4035 events. 1188/4035 cut-off events. For 171446/171446 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 43940 event pairs, 0 based on Foata normal form. 0/4027 useless extension candidates. Maximal degree in co-relation 53695. Up to 871 conditions per place. [2021-03-25 08:42:58,619 INFO L142 LiptonReduction]: Number of co-enabled transitions 1054 [2021-03-25 08:42:59,049 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:42:59,049 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:42:59,049 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1979 [2021-03-25 08:42:59,050 INFO L480 AbstractCegarLoop]: Abstraction has has 657 places, 1946 transitions, 61709 flow [2021-03-25 08:42:59,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:59,050 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:42:59,050 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:42:59,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-25 08:42:59,050 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:42:59,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:42:59,050 INFO L82 PathProgramCache]: Analyzing trace with hash 107734606, now seen corresponding path program 1 times [2021-03-25 08:42:59,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:42:59,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979304261] [2021-03-25 08:42:59,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:42:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:59,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:42:59,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:59,067 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:42:59,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:42:59,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:59,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979304261] [2021-03-25 08:42:59,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674267316] [2021-03-25 08:42:59,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:42:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:42:59,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:42:59,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:42:59,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:59,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:59,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:59,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:59,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:59,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:59,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:59,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:42:59,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:59,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:59,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:59,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:42:59,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:59,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:59,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:59,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:42:59,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:42:59,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:42:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:42:59,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:42:59,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3] total 3 [2021-03-25 08:42:59,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637642618] [2021-03-25 08:42:59,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 08:42:59,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:42:59,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 08:42:59,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 08:42:59,108 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 155 [2021-03-25 08:42:59,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 1946 transitions, 61709 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:42:59,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:42:59,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 155 [2021-03-25 08:42:59,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:43:02,543 INFO L129 PetriNetUnfolder]: 1188/4073 cut-off events. [2021-03-25 08:43:02,544 INFO L130 PetriNetUnfolder]: For 176548/177572 co-relation queries the response was YES. [2021-03-25 08:43:02,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57485 conditions, 4073 events. 1188/4073 cut-off events. For 176548/177572 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 44240 event pairs, 0 based on Foata normal form. 35/4100 useless extension candidates. Maximal degree in co-relation 57030. Up to 3255 conditions per place. [2021-03-25 08:43:02,634 INFO L132 encePairwiseOnDemand]: 114/155 looper letters, 1901 selfloop transitions, 43 changer transitions 1/1949 dead transitions. [2021-03-25 08:43:02,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 1949 transitions, 65729 flow [2021-03-25 08:43:02,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 08:43:02,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 08:43:02,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 114 transitions. [2021-03-25 08:43:02,635 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14709677419354839 [2021-03-25 08:43:02,635 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 114 transitions. [2021-03-25 08:43:02,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 114 transitions. [2021-03-25 08:43:02,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:43:02,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 114 transitions. [2021-03-25 08:43:02,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:02,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:02,636 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:02,636 INFO L185 Difference]: Start difference. First operand has 657 places, 1946 transitions, 61709 flow. Second operand 5 states and 114 transitions. [2021-03-25 08:43:02,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 1949 transitions, 65729 flow [2021-03-25 08:43:05,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 1949 transitions, 65637 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-03-25 08:43:05,749 INFO L241 Difference]: Finished difference. Result has 661 places, 1948 transitions, 61810 flow [2021-03-25 08:43:05,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=61617, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1903, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=61810, PETRI_PLACES=661, PETRI_TRANSITIONS=1948} [2021-03-25 08:43:05,750 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 646 predicate places. [2021-03-25 08:43:05,750 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:43:05,750 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 661 places, 1948 transitions, 61810 flow [2021-03-25 08:43:05,751 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 661 places, 1948 transitions, 61810 flow [2021-03-25 08:43:05,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 661 places, 1948 transitions, 61810 flow [2021-03-25 08:43:07,257 INFO L129 PetriNetUnfolder]: 1188/4038 cut-off events. [2021-03-25 08:43:07,257 INFO L130 PetriNetUnfolder]: For 172902/172902 co-relation queries the response was YES. [2021-03-25 08:43:07,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54497 conditions, 4038 events. 1188/4038 cut-off events. For 172902/172902 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 44061 event pairs, 0 based on Foata normal form. 0/4030 useless extension candidates. Maximal degree in co-relation 54051. Up to 871 conditions per place. [2021-03-25 08:43:07,378 INFO L142 LiptonReduction]: Number of co-enabled transitions 1056 [2021-03-25 08:43:07,756 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:43:07,756 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:43:07,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2006 [2021-03-25 08:43:07,756 INFO L480 AbstractCegarLoop]: Abstraction has has 661 places, 1948 transitions, 61810 flow [2021-03-25 08:43:07,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:07,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:43:07,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:43:07,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2021-03-25 08:43:07,957 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:43:07,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:43:07,957 INFO L82 PathProgramCache]: Analyzing trace with hash -955970014, now seen corresponding path program 1 times [2021-03-25 08:43:07,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:43:07,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574022832] [2021-03-25 08:43:07,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:43:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:07,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:07,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:07,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:07,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:07,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:07,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574022832] [2021-03-25 08:43:07,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140327125] [2021-03-25 08:43:07,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:43:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:07,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:43:07,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:43:07,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:07,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:07,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:07,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:07,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:07,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:07,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:07,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:07,993 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 08:43:07,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:07,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:07,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:43:07,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:07,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:07,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:07,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:43:07,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:43:07,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:43:07,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:07,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:43:08,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:08,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:08,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:08,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:08,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:08,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:08,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:43:08,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:08,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:08,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:43:08,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:43:08,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:43:08,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:08,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:43:08,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:43:08,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:08,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:43:08,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:43:08,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:08,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:08,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:43:08,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-03-25 08:43:08,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698769631] [2021-03-25 08:43:08,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:43:08,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:43:08,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:43:08,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:43:08,020 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 155 [2021-03-25 08:43:08,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 1948 transitions, 61810 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:08,021 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:43:08,021 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 155 [2021-03-25 08:43:08,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:43:11,479 INFO L129 PetriNetUnfolder]: 1187/4060 cut-off events. [2021-03-25 08:43:11,479 INFO L130 PetriNetUnfolder]: For 176276/176356 co-relation queries the response was YES. [2021-03-25 08:43:11,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57740 conditions, 4060 events. 1187/4060 cut-off events. For 176276/176356 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 44089 event pairs, 0 based on Foata normal form. 12/4064 useless extension candidates. Maximal degree in co-relation 57276. Up to 1934 conditions per place. [2021-03-25 08:43:11,569 INFO L132 encePairwiseOnDemand]: 110/155 looper letters, 1738 selfloop transitions, 209 changer transitions 3/1954 dead transitions. [2021-03-25 08:43:11,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 1954 transitions, 65854 flow [2021-03-25 08:43:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:43:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:43:11,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2021-03-25 08:43:11,570 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11774193548387096 [2021-03-25 08:43:11,570 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 146 transitions. [2021-03-25 08:43:11,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 146 transitions. [2021-03-25 08:43:11,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:43:11,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 146 transitions. [2021-03-25 08:43:11,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:11,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:11,571 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:11,571 INFO L185 Difference]: Start difference. First operand has 661 places, 1948 transitions, 61810 flow. Second operand 8 states and 146 transitions. [2021-03-25 08:43:11,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 668 places, 1954 transitions, 65854 flow [2021-03-25 08:43:14,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 1954 transitions, 65760 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-03-25 08:43:14,606 INFO L241 Difference]: Finished difference. Result has 666 places, 1945 transitions, 61972 flow [2021-03-25 08:43:14,607 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=61639, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1738, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=61972, PETRI_PLACES=666, PETRI_TRANSITIONS=1945} [2021-03-25 08:43:14,607 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 651 predicate places. [2021-03-25 08:43:14,607 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:43:14,607 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 666 places, 1945 transitions, 61972 flow [2021-03-25 08:43:14,607 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 666 places, 1945 transitions, 61972 flow [2021-03-25 08:43:14,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 663 places, 1945 transitions, 61972 flow [2021-03-25 08:43:15,994 INFO L129 PetriNetUnfolder]: 1187/4039 cut-off events. [2021-03-25 08:43:15,994 INFO L130 PetriNetUnfolder]: For 178975/178995 co-relation queries the response was YES. [2021-03-25 08:43:16,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54847 conditions, 4039 events. 1187/4039 cut-off events. For 178975/178995 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 44098 event pairs, 0 based on Foata normal form. 0/4031 useless extension candidates. Maximal degree in co-relation 54394. Up to 869 conditions per place. [2021-03-25 08:43:16,125 INFO L142 LiptonReduction]: Number of co-enabled transitions 1050 [2021-03-25 08:43:16,528 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:43:16,528 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:43:16,528 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1921 [2021-03-25 08:43:16,529 INFO L480 AbstractCegarLoop]: Abstraction has has 663 places, 1945 transitions, 61972 flow [2021-03-25 08:43:16,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:16,529 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:43:16,529 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:43:16,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:43:16,729 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:43:16,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:43:16,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1203123127, now seen corresponding path program 1 times [2021-03-25 08:43:16,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:43:16,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54013286] [2021-03-25 08:43:16,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:43:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:16,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:16,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:16,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:16,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54013286] [2021-03-25 08:43:16,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808012596] [2021-03-25 08:43:16,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:43:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:16,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:43:16,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:43:16,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:16,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:16,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:16,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:16,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:16,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:16,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:16,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:16,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:16,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:16,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:16,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:16,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:16,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:16,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:16,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:16,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:16,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:16,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:16,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:16,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:16,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:16,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:16,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:16,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:16,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:16,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:16,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:43:16,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:16,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:16,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:43:16,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:16,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:16,797 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:43:16,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:43:16,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:16,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:43:16,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:43:16,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:16,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:16,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:16,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:16,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:16,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:16,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:16,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:16,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:16,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:43:16,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:43:16,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057994172] [2021-03-25 08:43:16,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:43:16,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:43:16,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:43:16,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:43:16,805 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 155 [2021-03-25 08:43:16,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 1945 transitions, 61972 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:16,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:43:16,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 155 [2021-03-25 08:43:16,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:43:20,419 INFO L129 PetriNetUnfolder]: 1189/4056 cut-off events. [2021-03-25 08:43:20,419 INFO L130 PetriNetUnfolder]: For 185522/185891 co-relation queries the response was YES. [2021-03-25 08:43:20,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58332 conditions, 4056 events. 1189/4056 cut-off events. For 185522/185891 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 44023 event pairs, 0 based on Foata normal form. 26/4074 useless extension candidates. Maximal degree in co-relation 57861. Up to 3230 conditions per place. [2021-03-25 08:43:20,506 INFO L132 encePairwiseOnDemand]: 114/155 looper letters, 1878 selfloop transitions, 69 changer transitions 0/1951 dead transitions. [2021-03-25 08:43:20,506 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 671 places, 1951 transitions, 66348 flow [2021-03-25 08:43:20,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:43:20,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:43:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 158 transitions. [2021-03-25 08:43:20,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11326164874551971 [2021-03-25 08:43:20,507 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 158 transitions. [2021-03-25 08:43:20,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 158 transitions. [2021-03-25 08:43:20,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:43:20,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 158 transitions. [2021-03-25 08:43:20,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:20,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 155.0) internal successors, (1550), 10 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:20,508 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 155.0) internal successors, (1550), 10 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:20,508 INFO L185 Difference]: Start difference. First operand has 663 places, 1945 transitions, 61972 flow. Second operand 9 states and 158 transitions. [2021-03-25 08:43:20,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 671 places, 1951 transitions, 66348 flow [2021-03-25 08:43:23,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 667 places, 1951 transitions, 66095 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 08:43:23,682 INFO L241 Difference]: Finished difference. Result has 670 places, 1949 transitions, 62256 flow [2021-03-25 08:43:23,683 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=61721, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1876, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=62256, PETRI_PLACES=670, PETRI_TRANSITIONS=1949} [2021-03-25 08:43:23,683 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 655 predicate places. [2021-03-25 08:43:23,683 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:43:23,683 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 670 places, 1949 transitions, 62256 flow [2021-03-25 08:43:23,683 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 670 places, 1949 transitions, 62256 flow [2021-03-25 08:43:23,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 670 places, 1949 transitions, 62256 flow [2021-03-25 08:43:25,251 INFO L129 PetriNetUnfolder]: 1189/4042 cut-off events. [2021-03-25 08:43:25,251 INFO L130 PetriNetUnfolder]: For 175410/175492 co-relation queries the response was YES. [2021-03-25 08:43:25,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54845 conditions, 4042 events. 1189/4042 cut-off events. For 175410/175492 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 43996 event pairs, 0 based on Foata normal form. 0/4034 useless extension candidates. Maximal degree in co-relation 54468. Up to 870 conditions per place. [2021-03-25 08:43:25,364 INFO L142 LiptonReduction]: Number of co-enabled transitions 1054 [2021-03-25 08:43:25,760 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:43:25,760 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:43:25,761 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2078 [2021-03-25 08:43:25,761 INFO L480 AbstractCegarLoop]: Abstraction has has 670 places, 1949 transitions, 62256 flow [2021-03-25 08:43:25,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:25,761 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:43:25,761 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:43:25,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,108 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:43:25,961 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:43:25,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:43:25,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1887114591, now seen corresponding path program 1 times [2021-03-25 08:43:25,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:43:25,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998694404] [2021-03-25 08:43:25,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:43:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:25,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:25,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:25,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:25,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:25,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:25,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:25,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:25,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:25,990 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:43:25,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:25,992 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:25,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998694404] [2021-03-25 08:43:25,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224919852] [2021-03-25 08:43:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:43:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:26,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:43:26,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:43:26,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:26,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:26,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:26,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:26,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:26,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:26,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:26,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:26,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:26,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:26,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:26,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:26,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:26,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:26,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:26,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:26,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:43:26,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:43:26,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:43:26,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:43:26,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:26,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:26,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:26,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:43:26,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:43:26,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:43:26,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:43:26,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:43:26,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:26,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:43:26,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:26,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:43:26,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:43:26,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584426083] [2021-03-25 08:43:26,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:43:26,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:43:26,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:43:26,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:43:26,063 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 155 [2021-03-25 08:43:26,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 670 places, 1949 transitions, 62256 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:26,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:43:26,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 155 [2021-03-25 08:43:26,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:43:29,766 INFO L129 PetriNetUnfolder]: 1211/4127 cut-off events. [2021-03-25 08:43:29,767 INFO L130 PetriNetUnfolder]: For 185212/185254 co-relation queries the response was YES. [2021-03-25 08:43:29,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59823 conditions, 4127 events. 1211/4127 cut-off events. For 185212/185254 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 44923 event pairs, 0 based on Foata normal form. 9/4128 useless extension candidates. Maximal degree in co-relation 59357. Up to 3273 conditions per place. [2021-03-25 08:43:29,862 INFO L132 encePairwiseOnDemand]: 115/155 looper letters, 1919 selfloop transitions, 73 changer transitions 1/1997 dead transitions. [2021-03-25 08:43:29,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 677 places, 1997 transitions, 68852 flow [2021-03-25 08:43:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:43:29,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:43:29,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-25 08:43:29,863 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12419354838709677 [2021-03-25 08:43:29,863 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-25 08:43:29,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-25 08:43:29,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:43:29,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-25 08:43:29,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:29,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:29,864 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:29,864 INFO L185 Difference]: Start difference. First operand has 670 places, 1949 transitions, 62256 flow. Second operand 8 states and 154 transitions. [2021-03-25 08:43:29,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 677 places, 1997 transitions, 68852 flow [2021-03-25 08:43:32,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 673 places, 1997 transitions, 68610 flow, removed 74 selfloop flow, removed 4 redundant places. [2021-03-25 08:43:33,019 INFO L241 Difference]: Finished difference. Result has 677 places, 1977 transitions, 63757 flow [2021-03-25 08:43:33,019 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=62097, PETRI_DIFFERENCE_MINUEND_PLACES=666, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1949, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1886, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=63757, PETRI_PLACES=677, PETRI_TRANSITIONS=1977} [2021-03-25 08:43:33,020 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 662 predicate places. [2021-03-25 08:43:33,020 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:43:33,020 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 677 places, 1977 transitions, 63757 flow [2021-03-25 08:43:33,020 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 677 places, 1977 transitions, 63757 flow [2021-03-25 08:43:33,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 677 places, 1977 transitions, 63757 flow [2021-03-25 08:43:34,532 INFO L129 PetriNetUnfolder]: 1211/4114 cut-off events. [2021-03-25 08:43:34,532 INFO L130 PetriNetUnfolder]: For 185183/185183 co-relation queries the response was YES. [2021-03-25 08:43:34,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56851 conditions, 4114 events. 1211/4114 cut-off events. For 185183/185183 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 45001 event pairs, 0 based on Foata normal form. 0/4106 useless extension candidates. Maximal degree in co-relation 56511. Up to 888 conditions per place. [2021-03-25 08:43:34,665 INFO L142 LiptonReduction]: Number of co-enabled transitions 1084 [2021-03-25 08:43:36,696 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:43:36,696 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:43:36,696 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3676 [2021-03-25 08:43:36,696 INFO L480 AbstractCegarLoop]: Abstraction has has 674 places, 1974 transitions, 63787 flow [2021-03-25 08:43:36,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:36,696 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:43:36,697 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:43:36,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:43:36,897 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:43:36,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:43:36,897 INFO L82 PathProgramCache]: Analyzing trace with hash 116246424, now seen corresponding path program 1 times [2021-03-25 08:43:36,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:43:36,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691513674] [2021-03-25 08:43:36,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:43:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:36,908 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:43:36,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:36,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:36,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691513674] [2021-03-25 08:43:36,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714987148] [2021-03-25 08:43:36,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:43:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:36,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:43:36,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:43:36,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:36,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:36,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:36,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:43:36,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:36,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:36,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:43:36,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:36,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:36,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:36,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:36,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:36,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:36,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:36,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:43:36,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:43:36,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:36,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:43:36,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:43:36,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:36,996 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-25 08:43:36,997 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 08:43:36,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:43:37,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:37,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:43:37,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:43:37,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:37,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:43:37,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:43:37,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:43:37,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:43:37,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:37,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:43:37,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:43:37,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:37,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:43:37,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:43:37,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:43:37,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:43:37,060 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 08:43:37,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:43:37,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:37,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 08:43:37,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 08:43:37,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:37,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:37,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:37,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:37,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:37,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:37,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:37,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:37,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:37,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:37,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:43:37,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 08:43:37,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980338201] [2021-03-25 08:43:37,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 08:43:37,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:43:37,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 08:43:37,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-25 08:43:37,077 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 159 [2021-03-25 08:43:37,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 674 places, 1974 transitions, 63787 flow. Second operand has 12 states, 12 states have (on average 11.25) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:37,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:43:37,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 159 [2021-03-25 08:43:37,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:43:41,972 INFO L129 PetriNetUnfolder]: 1247/4210 cut-off events. [2021-03-25 08:43:41,972 INFO L130 PetriNetUnfolder]: For 195142/195193 co-relation queries the response was YES. [2021-03-25 08:43:42,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61467 conditions, 4210 events. 1247/4210 cut-off events. For 195142/195193 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 45631 event pairs, 0 based on Foata normal form. 33/4235 useless extension candidates. Maximal degree in co-relation 61075. Up to 2911 conditions per place. [2021-03-25 08:43:42,069 INFO L132 encePairwiseOnDemand]: 118/159 looper letters, 1728 selfloop transitions, 368 changer transitions 0/2100 dead transitions. [2021-03-25 08:43:42,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 2100 transitions, 71540 flow [2021-03-25 08:43:42,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:43:42,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:43:42,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-25 08:43:42,084 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12106918238993711 [2021-03-25 08:43:42,084 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-25 08:43:42,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-25 08:43:42,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:43:42,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-25 08:43:42,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:42,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:42,086 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:42,086 INFO L185 Difference]: Start difference. First operand has 674 places, 1974 transitions, 63787 flow. Second operand 8 states and 154 transitions. [2021-03-25 08:43:42,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 2100 transitions, 71540 flow [2021-03-25 08:43:45,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 675 places, 2100 transitions, 70768 flow, removed 361 selfloop flow, removed 6 redundant places. [2021-03-25 08:43:45,492 INFO L241 Difference]: Finished difference. Result has 678 places, 2016 transitions, 65432 flow [2021-03-25 08:43:45,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=63015, PETRI_DIFFERENCE_MINUEND_PLACES=668, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1974, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=65432, PETRI_PLACES=678, PETRI_TRANSITIONS=2016} [2021-03-25 08:43:45,493 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 663 predicate places. [2021-03-25 08:43:45,494 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:43:45,494 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 678 places, 2016 transitions, 65432 flow [2021-03-25 08:43:45,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 678 places, 2016 transitions, 65432 flow [2021-03-25 08:43:45,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 678 places, 2016 transitions, 65432 flow [2021-03-25 08:43:46,974 INFO L129 PetriNetUnfolder]: 1247/4182 cut-off events. [2021-03-25 08:43:46,975 INFO L130 PetriNetUnfolder]: For 196691/197136 co-relation queries the response was YES. [2021-03-25 08:43:47,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58117 conditions, 4182 events. 1247/4182 cut-off events. For 196691/197136 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 45534 event pairs, 0 based on Foata normal form. 0/4174 useless extension candidates. Maximal degree in co-relation 57664. Up to 927 conditions per place. [2021-03-25 08:43:47,113 INFO L142 LiptonReduction]: Number of co-enabled transitions 1078 [2021-03-25 08:43:47,515 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:43:47,515 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:43:47,515 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2021 [2021-03-25 08:43:47,515 INFO L480 AbstractCegarLoop]: Abstraction has has 678 places, 2016 transitions, 65432 flow [2021-03-25 08:43:47,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:47,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:43:47,516 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:43:47,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-03-25 08:43:47,716 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:43:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:43:47,716 INFO L82 PathProgramCache]: Analyzing trace with hash -2007549500, now seen corresponding path program 1 times [2021-03-25 08:43:47,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:43:47,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934823194] [2021-03-25 08:43:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:43:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:47,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:47,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:47,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:47,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:47,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934823194] [2021-03-25 08:43:47,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714958810] [2021-03-25 08:43:47,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:43:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:47,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:43:47,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:43:47,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:47,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:47,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:47,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:47,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:47,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:47,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:47,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:47,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:47,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:47,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:47,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:47,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:47,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:47,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:43:47,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:43:47,758 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:43:47,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:47,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:47,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:47,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:47,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:47,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:47,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:47,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:47,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:47,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:47,763 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:43:47,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:47,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:47,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:43:47,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:43:47,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774887806] [2021-03-25 08:43:47,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:43:47,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:43:47,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:43:47,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:43:47,779 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 159 [2021-03-25 08:43:47,779 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 678 places, 2016 transitions, 65432 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:47,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:43:47,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 159 [2021-03-25 08:43:47,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:43:51,627 INFO L129 PetriNetUnfolder]: 1246/4189 cut-off events. [2021-03-25 08:43:51,628 INFO L130 PetriNetUnfolder]: For 195720/195727 co-relation queries the response was YES. [2021-03-25 08:43:51,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61506 conditions, 4189 events. 1246/4189 cut-off events. For 195720/195727 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 45398 event pairs, 0 based on Foata normal form. 8/4189 useless extension candidates. Maximal degree in co-relation 61035. Up to 3284 conditions per place. [2021-03-25 08:43:51,711 INFO L132 encePairwiseOnDemand]: 113/159 looper letters, 1880 selfloop transitions, 137 changer transitions 1/2022 dead transitions. [2021-03-25 08:43:51,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 2022 transitions, 69638 flow [2021-03-25 08:43:51,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:43:51,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:43:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 163 transitions. [2021-03-25 08:43:51,712 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11390635918937805 [2021-03-25 08:43:51,712 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 163 transitions. [2021-03-25 08:43:51,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 163 transitions. [2021-03-25 08:43:51,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:43:51,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 163 transitions. [2021-03-25 08:43:51,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.11111111111111) internal successors, (163), 9 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:51,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:51,713 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:51,713 INFO L185 Difference]: Start difference. First operand has 678 places, 2016 transitions, 65432 flow. Second operand 9 states and 163 transitions. [2021-03-25 08:43:51,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 686 places, 2022 transitions, 69638 flow [2021-03-25 08:43:54,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 2022 transitions, 69220 flow, removed 88 selfloop flow, removed 4 redundant places. [2021-03-25 08:43:54,963 INFO L241 Difference]: Finished difference. Result has 683 places, 2016 transitions, 65406 flow [2021-03-25 08:43:54,964 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=64995, PETRI_DIFFERENCE_MINUEND_PLACES=674, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2015, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1878, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=65406, PETRI_PLACES=683, PETRI_TRANSITIONS=2016} [2021-03-25 08:43:54,964 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 668 predicate places. [2021-03-25 08:43:54,964 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:43:54,964 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 683 places, 2016 transitions, 65406 flow [2021-03-25 08:43:54,964 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 683 places, 2016 transitions, 65406 flow [2021-03-25 08:43:54,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 683 places, 2016 transitions, 65406 flow [2021-03-25 08:43:56,512 INFO L129 PetriNetUnfolder]: 1246/4179 cut-off events. [2021-03-25 08:43:56,512 INFO L130 PetriNetUnfolder]: For 193100/193100 co-relation queries the response was YES. [2021-03-25 08:43:56,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58010 conditions, 4179 events. 1246/4179 cut-off events. For 193100/193100 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 45507 event pairs, 0 based on Foata normal form. 0/4171 useless extension candidates. Maximal degree in co-relation 57556. Up to 927 conditions per place. [2021-03-25 08:43:56,651 INFO L142 LiptonReduction]: Number of co-enabled transitions 1076 [2021-03-25 08:43:57,080 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:43:57,080 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:43:57,081 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2117 [2021-03-25 08:43:57,081 INFO L480 AbstractCegarLoop]: Abstraction has has 683 places, 2016 transitions, 65406 flow [2021-03-25 08:43:57,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:57,081 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:43:57,081 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:43:57,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-03-25 08:43:57,281 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:43:57,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:43:57,282 INFO L82 PathProgramCache]: Analyzing trace with hash 160687697, now seen corresponding path program 1 times [2021-03-25 08:43:57,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:43:57,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048480645] [2021-03-25 08:43:57,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:43:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:57,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:57,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:57,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:57,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048480645] [2021-03-25 08:43:57,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035890475] [2021-03-25 08:43:57,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:43:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:43:57,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:43:57,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:43:57,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:57,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:57,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:57,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:57,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:57,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:57,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:57,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:43:57,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:57,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:57,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:57,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:57,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:57,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:57,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:57,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:57,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:57,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:57,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:57,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:57,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:43:57,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:57,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:57,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:43:57,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:43:57,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:57,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:57,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:43:57,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:57,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:43:57,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:43:57,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:57,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:43:57,397 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:43:57,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:43:57,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:43:57,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:43:57,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:43:57,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:57,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:57,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:57,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:57,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:57,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:57,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:57,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:43:57,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:43:57,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:43:57,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:43:57,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:43:57,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133657550] [2021-03-25 08:43:57,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:43:57,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:43:57,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:43:57,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:43:57,407 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 159 [2021-03-25 08:43:57,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 683 places, 2016 transitions, 65406 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:43:57,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:43:57,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 159 [2021-03-25 08:43:57,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:44:01,163 INFO L129 PetriNetUnfolder]: 1248/4197 cut-off events. [2021-03-25 08:44:01,163 INFO L130 PetriNetUnfolder]: For 200011/200311 co-relation queries the response was YES. [2021-03-25 08:44:01,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61639 conditions, 4197 events. 1248/4197 cut-off events. For 200011/200311 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 45486 event pairs, 0 based on Foata normal form. 11/4200 useless extension candidates. Maximal degree in co-relation 61167. Up to 3365 conditions per place. [2021-03-25 08:44:01,265 INFO L132 encePairwiseOnDemand]: 117/159 looper letters, 1947 selfloop transitions, 71 changer transitions 0/2022 dead transitions. [2021-03-25 08:44:01,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 2022 transitions, 69942 flow [2021-03-25 08:44:01,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:44:01,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:44:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 159 transitions. [2021-03-25 08:44:01,267 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1111111111111111 [2021-03-25 08:44:01,267 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 159 transitions. [2021-03-25 08:44:01,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 159 transitions. [2021-03-25 08:44:01,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:44:01,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 159 transitions. [2021-03-25 08:44:01,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:01,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:01,268 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:01,268 INFO L185 Difference]: Start difference. First operand has 683 places, 2016 transitions, 65406 flow. Second operand 9 states and 159 transitions. [2021-03-25 08:44:01,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 691 places, 2022 transitions, 69942 flow [2021-03-25 08:44:04,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 685 places, 2022 transitions, 69768 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-25 08:44:04,885 INFO L241 Difference]: Finished difference. Result has 688 places, 2020 transitions, 65785 flow [2021-03-25 08:44:04,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=65232, PETRI_DIFFERENCE_MINUEND_PLACES=677, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2016, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=65785, PETRI_PLACES=688, PETRI_TRANSITIONS=2020} [2021-03-25 08:44:04,886 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 673 predicate places. [2021-03-25 08:44:04,886 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:44:04,886 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 688 places, 2020 transitions, 65785 flow [2021-03-25 08:44:04,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 688 places, 2020 transitions, 65785 flow [2021-03-25 08:44:04,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 688 places, 2020 transitions, 65785 flow [2021-03-25 08:44:06,414 INFO L129 PetriNetUnfolder]: 1248/4185 cut-off events. [2021-03-25 08:44:06,414 INFO L130 PetriNetUnfolder]: For 199483/199971 co-relation queries the response was YES. [2021-03-25 08:44:06,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58251 conditions, 4185 events. 1248/4185 cut-off events. For 199483/199971 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 45589 event pairs, 0 based on Foata normal form. 0/4177 useless extension candidates. Maximal degree in co-relation 57859. Up to 929 conditions per place. [2021-03-25 08:44:06,553 INFO L142 LiptonReduction]: Number of co-enabled transitions 1080 [2021-03-25 08:44:06,964 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:44:06,964 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:44:06,964 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2078 [2021-03-25 08:44:06,964 INFO L480 AbstractCegarLoop]: Abstraction has has 688 places, 2020 transitions, 65785 flow [2021-03-25 08:44:06,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:06,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:44:06,964 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:44:07,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-03-25 08:44:07,166 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:44:07,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:44:07,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1655600371, now seen corresponding path program 1 times [2021-03-25 08:44:07,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:44:07,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188399873] [2021-03-25 08:44:07,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:44:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:07,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:07,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,194 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:44:07,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:07,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188399873] [2021-03-25 08:44:07,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465930631] [2021-03-25 08:44:07,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:44:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:07,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:44:07,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:44:07,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:07,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:07,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:07,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:07,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:07,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:44:07,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:44:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:44:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:44:07,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:07,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:44:07,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:44:07,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:44:07,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:44:07,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:07,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:07,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:44:07,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:44:07,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302295818] [2021-03-25 08:44:07,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:44:07,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:44:07,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:44:07,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:44:07,376 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 159 [2021-03-25 08:44:07,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 688 places, 2020 transitions, 65785 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:07,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:44:07,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 159 [2021-03-25 08:44:07,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:44:11,407 INFO L129 PetriNetUnfolder]: 1270/4269 cut-off events. [2021-03-25 08:44:11,408 INFO L130 PetriNetUnfolder]: For 208463/208511 co-relation queries the response was YES. [2021-03-25 08:44:11,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63423 conditions, 4269 events. 1270/4269 cut-off events. For 208463/208511 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 46325 event pairs, 0 based on Foata normal form. 9/4270 useless extension candidates. Maximal degree in co-relation 62948. Up to 3409 conditions per place. [2021-03-25 08:44:11,494 INFO L132 encePairwiseOnDemand]: 118/159 looper letters, 1989 selfloop transitions, 74 changer transitions 1/2068 dead transitions. [2021-03-25 08:44:11,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 695 places, 2068 transitions, 72613 flow [2021-03-25 08:44:11,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:44:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:44:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-25 08:44:11,495 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12185534591194969 [2021-03-25 08:44:11,495 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-25 08:44:11,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-25 08:44:11,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:44:11,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-25 08:44:11,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:11,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:11,497 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:11,497 INFO L185 Difference]: Start difference. First operand has 688 places, 2020 transitions, 65785 flow. Second operand 8 states and 155 transitions. [2021-03-25 08:44:11,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 695 places, 2068 transitions, 72613 flow [2021-03-25 08:44:14,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 2068 transitions, 72233 flow, removed 88 selfloop flow, removed 5 redundant places. [2021-03-25 08:44:14,902 INFO L241 Difference]: Finished difference. Result has 694 places, 2048 transitions, 67222 flow [2021-03-25 08:44:14,903 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=65496, PETRI_DIFFERENCE_MINUEND_PLACES=683, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=67222, PETRI_PLACES=694, PETRI_TRANSITIONS=2048} [2021-03-25 08:44:14,903 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 679 predicate places. [2021-03-25 08:44:14,903 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:44:14,903 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 694 places, 2048 transitions, 67222 flow [2021-03-25 08:44:14,903 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 694 places, 2048 transitions, 67222 flow [2021-03-25 08:44:14,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 694 places, 2048 transitions, 67222 flow [2021-03-25 08:44:16,519 INFO L129 PetriNetUnfolder]: 1270/4257 cut-off events. [2021-03-25 08:44:16,519 INFO L130 PetriNetUnfolder]: For 208553/208554 co-relation queries the response was YES. [2021-03-25 08:44:16,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60265 conditions, 4257 events. 1270/4257 cut-off events. For 208553/208554 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 46508 event pairs, 0 based on Foata normal form. 1/4250 useless extension candidates. Maximal degree in co-relation 59916. Up to 952 conditions per place. [2021-03-25 08:44:16,669 INFO L142 LiptonReduction]: Number of co-enabled transitions 1110 [2021-03-25 08:44:18,694 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:44:18,694 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:44:18,694 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3791 [2021-03-25 08:44:18,694 INFO L480 AbstractCegarLoop]: Abstraction has has 691 places, 2045 transitions, 67255 flow [2021-03-25 08:44:18,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:18,694 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:44:18,694 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:44:18,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2021-03-25 08:44:18,898 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:44:18,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:44:18,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1923700887, now seen corresponding path program 1 times [2021-03-25 08:44:18,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:44:18,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559804744] [2021-03-25 08:44:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:44:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:18,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:18,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:18,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:18,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:18,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:18,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:18,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559804744] [2021-03-25 08:44:18,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351580152] [2021-03-25 08:44:18,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:44:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:18,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:44:18,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:44:18,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:18,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:18,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:18,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:18,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:18,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:18,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:18,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:18,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:18,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:18,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:18,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:18,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:18,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:18,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:44:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:44:18,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:18,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:44:18,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:44:18,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:18,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:18,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:18,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:44:18,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:44:18,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:18,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:44:18,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:44:18,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:44:18,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:44:18,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:18,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 08:44:18,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:44:18,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:18,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 08:44:18,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:44:18,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:44:18,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:18,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:44:19,001 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-25 08:44:19,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:44:19,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:19,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:44:19,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 08:44:19,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:19,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:19,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:19,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:19,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:19,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:19,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:44:19,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 08:44:19,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656767199] [2021-03-25 08:44:19,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:44:19,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:44:19,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:44:19,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:44:19,011 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 163 [2021-03-25 08:44:19,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 691 places, 2045 transitions, 67255 flow. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:19,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:44:19,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 163 [2021-03-25 08:44:19,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:44:24,544 INFO L129 PetriNetUnfolder]: 1306/4342 cut-off events. [2021-03-25 08:44:24,544 INFO L130 PetriNetUnfolder]: For 222124/222382 co-relation queries the response was YES. [2021-03-25 08:44:24,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65084 conditions, 4342 events. 1306/4342 cut-off events. For 222124/222382 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 46950 event pairs, 0 based on Foata normal form. 50/4384 useless extension candidates. Maximal degree in co-relation 64683. Up to 2908 conditions per place. [2021-03-25 08:44:24,634 INFO L132 encePairwiseOnDemand]: 118/163 looper letters, 1623 selfloop transitions, 571 changer transitions 0/2198 dead transitions. [2021-03-25 08:44:24,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 709 places, 2198 transitions, 75898 flow [2021-03-25 08:44:24,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 08:44:24,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 08:44:24,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 280 transitions. [2021-03-25 08:44:24,649 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.09041007426541815 [2021-03-25 08:44:24,649 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 280 transitions. [2021-03-25 08:44:24,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 280 transitions. [2021-03-25 08:44:24,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:44:24,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 280 transitions. [2021-03-25 08:44:24,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 14.736842105263158) internal successors, (280), 19 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:24,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 163.0) internal successors, (3260), 20 states have internal predecessors, (3260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:24,651 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 163.0) internal successors, (3260), 20 states have internal predecessors, (3260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:24,651 INFO L185 Difference]: Start difference. First operand has 691 places, 2045 transitions, 67255 flow. Second operand 19 states and 280 transitions. [2021-03-25 08:44:24,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 709 places, 2198 transitions, 75898 flow [2021-03-25 08:44:28,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 704 places, 2198 transitions, 75101 flow, removed 374 selfloop flow, removed 5 redundant places. [2021-03-25 08:44:28,188 INFO L241 Difference]: Finished difference. Result has 706 places, 2108 transitions, 70063 flow [2021-03-25 08:44:28,189 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=66458, PETRI_DIFFERENCE_MINUEND_PLACES=686, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=508, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=70063, PETRI_PLACES=706, PETRI_TRANSITIONS=2108} [2021-03-25 08:44:28,189 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 691 predicate places. [2021-03-25 08:44:28,189 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:44:28,189 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 706 places, 2108 transitions, 70063 flow [2021-03-25 08:44:28,189 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 706 places, 2108 transitions, 70063 flow [2021-03-25 08:44:28,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 706 places, 2108 transitions, 70063 flow [2021-03-25 08:44:29,860 INFO L129 PetriNetUnfolder]: 1306/4336 cut-off events. [2021-03-25 08:44:29,860 INFO L130 PetriNetUnfolder]: For 219107/219151 co-relation queries the response was YES. [2021-03-25 08:44:29,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61893 conditions, 4336 events. 1306/4336 cut-off events. For 219107/219151 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 47298 event pairs, 0 based on Foata normal form. 0/4328 useless extension candidates. Maximal degree in co-relation 61432. Up to 969 conditions per place. [2021-03-25 08:44:30,016 INFO L142 LiptonReduction]: Number of co-enabled transitions 1104 [2021-03-25 08:44:30,524 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:44:30,524 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:44:30,524 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2335 [2021-03-25 08:44:30,524 INFO L480 AbstractCegarLoop]: Abstraction has has 706 places, 2108 transitions, 70063 flow [2021-03-25 08:44:30,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:30,524 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:44:30,524 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:44:30,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2021-03-25 08:44:30,725 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:44:30,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:44:30,725 INFO L82 PathProgramCache]: Analyzing trace with hash 672562778, now seen corresponding path program 1 times [2021-03-25 08:44:30,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:44:30,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057890953] [2021-03-25 08:44:30,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:44:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:30,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:30,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:30,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:30,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:30,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057890953] [2021-03-25 08:44:30,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477922265] [2021-03-25 08:44:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:44:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:30,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:44:30,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:44:30,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:30,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:30,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:30,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:30,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:30,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:30,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:30,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:30,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:30,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:30,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:30,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:30,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:30,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:30,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:44:30,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:44:30,765 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:44:30,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:30,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:30,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:30,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:30,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:30,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:30,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:30,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:30,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:30,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:30,769 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:44:30,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:30,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:30,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:44:30,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:44:30,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058934432] [2021-03-25 08:44:30,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:44:30,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:44:30,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:44:30,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:44:30,780 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 163 [2021-03-25 08:44:30,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 706 places, 2108 transitions, 70063 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:30,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:44:30,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 163 [2021-03-25 08:44:30,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:44:34,610 INFO L129 PetriNetUnfolder]: 1305/4336 cut-off events. [2021-03-25 08:44:34,611 INFO L130 PetriNetUnfolder]: For 220390/220390 co-relation queries the response was YES. [2021-03-25 08:44:34,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65411 conditions, 4336 events. 1305/4336 cut-off events. For 220390/220390 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 46933 event pairs, 0 based on Foata normal form. 1/4329 useless extension candidates. Maximal degree in co-relation 64932. Up to 3419 conditions per place. [2021-03-25 08:44:34,717 INFO L132 encePairwiseOnDemand]: 116/163 looper letters, 1970 selfloop transitions, 139 changer transitions 1/2114 dead transitions. [2021-03-25 08:44:34,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 714 places, 2114 transitions, 74461 flow [2021-03-25 08:44:34,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:44:34,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:44:34,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 164 transitions. [2021-03-25 08:44:34,718 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11179277436946149 [2021-03-25 08:44:34,718 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 164 transitions. [2021-03-25 08:44:34,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 164 transitions. [2021-03-25 08:44:34,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:44:34,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 164 transitions. [2021-03-25 08:44:34,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:34,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 163.0) internal successors, (1630), 10 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:34,719 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 163.0) internal successors, (1630), 10 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:34,719 INFO L185 Difference]: Start difference. First operand has 706 places, 2108 transitions, 70063 flow. Second operand 9 states and 164 transitions. [2021-03-25 08:44:34,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 714 places, 2114 transitions, 74461 flow [2021-03-25 08:44:38,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 706 places, 2114 transitions, 73000 flow, removed 541 selfloop flow, removed 8 redundant places. [2021-03-25 08:44:38,871 INFO L241 Difference]: Finished difference. Result has 707 places, 2108 transitions, 69004 flow [2021-03-25 08:44:38,872 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=68585, PETRI_DIFFERENCE_MINUEND_PLACES=698, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=69004, PETRI_PLACES=707, PETRI_TRANSITIONS=2108} [2021-03-25 08:44:38,872 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 692 predicate places. [2021-03-25 08:44:38,872 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:44:38,872 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 707 places, 2108 transitions, 69004 flow [2021-03-25 08:44:38,872 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 707 places, 2108 transitions, 69004 flow [2021-03-25 08:44:38,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 707 places, 2108 transitions, 69004 flow [2021-03-25 08:44:40,544 INFO L129 PetriNetUnfolder]: 1305/4333 cut-off events. [2021-03-25 08:44:40,544 INFO L130 PetriNetUnfolder]: For 217113/217704 co-relation queries the response was YES. [2021-03-25 08:44:40,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60984 conditions, 4333 events. 1305/4333 cut-off events. For 217113/217704 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 47130 event pairs, 0 based on Foata normal form. 3/4328 useless extension candidates. Maximal degree in co-relation 60522. Up to 969 conditions per place. [2021-03-25 08:44:40,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 1102 [2021-03-25 08:44:41,191 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:44:41,191 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:44:41,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2319 [2021-03-25 08:44:41,191 INFO L480 AbstractCegarLoop]: Abstraction has has 707 places, 2108 transitions, 69004 flow [2021-03-25 08:44:41,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:41,192 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:44:41,192 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:44:41,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:44:41,392 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:44:41,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:44:41,392 INFO L82 PathProgramCache]: Analyzing trace with hash 821872263, now seen corresponding path program 1 times [2021-03-25 08:44:41,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:44:41,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545700108] [2021-03-25 08:44:41,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:44:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:41,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:41,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:41,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:41,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:41,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545700108] [2021-03-25 08:44:41,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517256291] [2021-03-25 08:44:41,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:44:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:41,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:44:41,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:44:41,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:41,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:41,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:41,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:41,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:41,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:41,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:41,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:41,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:41,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:41,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:41,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:41,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:41,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:41,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:41,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:41,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:41,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:41,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:41,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:44:41,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:44:41,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:41,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:44:41,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:44:41,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:41,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:44:41,465 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:44:41,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:44:41,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:44:41,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:44:41,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:44:41,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:41,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:41,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:41,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:41,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:41,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:44:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:41,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:44:41,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:44:41,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300718420] [2021-03-25 08:44:41,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:44:41,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:44:41,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:44:41,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:44:41,471 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 163 [2021-03-25 08:44:41,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 707 places, 2108 transitions, 69004 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:41,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:44:41,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 163 [2021-03-25 08:44:41,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:44:45,654 INFO L129 PetriNetUnfolder]: 1307/4340 cut-off events. [2021-03-25 08:44:45,654 INFO L130 PetriNetUnfolder]: For 218606/218681 co-relation queries the response was YES. [2021-03-25 08:44:45,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64745 conditions, 4340 events. 1307/4340 cut-off events. For 218606/218681 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 46947 event pairs, 0 based on Foata normal form. 12/4344 useless extension candidates. Maximal degree in co-relation 64265. Up to 3500 conditions per place. [2021-03-25 08:44:45,752 INFO L132 encePairwiseOnDemand]: 120/163 looper letters, 2037 selfloop transitions, 73 changer transitions 0/2114 dead transitions. [2021-03-25 08:44:45,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 715 places, 2114 transitions, 73742 flow [2021-03-25 08:44:45,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:44:45,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:44:45,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 160 transitions. [2021-03-25 08:44:45,753 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10906612133605999 [2021-03-25 08:44:45,753 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 160 transitions. [2021-03-25 08:44:45,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 160 transitions. [2021-03-25 08:44:45,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:44:45,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 160 transitions. [2021-03-25 08:44:45,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:45,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 163.0) internal successors, (1630), 10 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:45,754 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 163.0) internal successors, (1630), 10 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:45,754 INFO L185 Difference]: Start difference. First operand has 707 places, 2108 transitions, 69004 flow. Second operand 9 states and 160 transitions. [2021-03-25 08:44:45,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 715 places, 2114 transitions, 73742 flow [2021-03-25 08:44:49,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 709 places, 2114 transitions, 73562 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-25 08:44:49,519 INFO L241 Difference]: Finished difference. Result has 712 places, 2112 transitions, 69393 flow [2021-03-25 08:44:49,520 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=68824, PETRI_DIFFERENCE_MINUEND_PLACES=701, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2035, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=69393, PETRI_PLACES=712, PETRI_TRANSITIONS=2112} [2021-03-25 08:44:49,520 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 697 predicate places. [2021-03-25 08:44:49,520 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:44:49,521 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 712 places, 2112 transitions, 69393 flow [2021-03-25 08:44:49,521 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 712 places, 2112 transitions, 69393 flow [2021-03-25 08:44:49,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 712 places, 2112 transitions, 69393 flow [2021-03-25 08:44:51,220 INFO L129 PetriNetUnfolder]: 1307/4339 cut-off events. [2021-03-25 08:44:51,220 INFO L130 PetriNetUnfolder]: For 217016/217034 co-relation queries the response was YES. [2021-03-25 08:44:51,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61232 conditions, 4339 events. 1307/4339 cut-off events. For 217016/217034 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 47354 event pairs, 0 based on Foata normal form. 0/4331 useless extension candidates. Maximal degree in co-relation 60828. Up to 971 conditions per place. [2021-03-25 08:44:51,352 INFO L142 LiptonReduction]: Number of co-enabled transitions 1106 [2021-03-25 08:44:51,789 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:44:51,789 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:44:51,789 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2269 [2021-03-25 08:44:51,790 INFO L480 AbstractCegarLoop]: Abstraction has has 712 places, 2112 transitions, 69393 flow [2021-03-25 08:44:51,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:51,790 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:44:51,790 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:44:51,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2021-03-25 08:44:51,992 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:44:51,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:44:51,992 INFO L82 PathProgramCache]: Analyzing trace with hash 315675897, now seen corresponding path program 1 times [2021-03-25 08:44:51,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:44:51,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796051307] [2021-03-25 08:44:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:44:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:51,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:51,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:44:52,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,022 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:44:52,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:44:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:52,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796051307] [2021-03-25 08:44:52,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212449409] [2021-03-25 08:44:52,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:44:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:44:52,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:44:52,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:44:52,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:52,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:52,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:52,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:52,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:52,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:52,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:52,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:44:52,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:52,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:52,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:52,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:44:52,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:44:52,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:44:52,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:44:52,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:44:52,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:44:52,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:44:52,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:44:52,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:44:52,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:44:52,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:44:52,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:44:52,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:44:52,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:44:52,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:44:52,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080559792] [2021-03-25 08:44:52,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:44:52,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:44:52,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:44:52,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:44:52,152 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 163 [2021-03-25 08:44:52,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 712 places, 2112 transitions, 69393 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:52,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:44:52,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 163 [2021-03-25 08:44:52,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:44:56,601 INFO L129 PetriNetUnfolder]: 1329/4412 cut-off events. [2021-03-25 08:44:56,601 INFO L130 PetriNetUnfolder]: For 227433/227467 co-relation queries the response was YES. [2021-03-25 08:44:56,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66586 conditions, 4412 events. 1329/4412 cut-off events. For 227433/227467 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 47826 event pairs, 0 based on Foata normal form. 11/4415 useless extension candidates. Maximal degree in co-relation 66103. Up to 3545 conditions per place. [2021-03-25 08:44:56,693 INFO L132 encePairwiseOnDemand]: 121/163 looper letters, 2080 selfloop transitions, 75 changer transitions 1/2160 dead transitions. [2021-03-25 08:44:56,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 719 places, 2160 transitions, 76491 flow [2021-03-25 08:44:56,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:44:56,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:44:56,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 156 transitions. [2021-03-25 08:44:56,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1196319018404908 [2021-03-25 08:44:56,695 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 156 transitions. [2021-03-25 08:44:56,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 156 transitions. [2021-03-25 08:44:56,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:44:56,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 156 transitions. [2021-03-25 08:44:56,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:56,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:56,696 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:44:56,696 INFO L185 Difference]: Start difference. First operand has 712 places, 2112 transitions, 69393 flow. Second operand 8 states and 156 transitions. [2021-03-25 08:44:56,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 719 places, 2160 transitions, 76491 flow [2021-03-25 08:45:00,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 714 places, 2160 transitions, 76107 flow, removed 88 selfloop flow, removed 5 redundant places. [2021-03-25 08:45:00,478 INFO L241 Difference]: Finished difference. Result has 718 places, 2140 transitions, 70892 flow [2021-03-25 08:45:00,478 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=69100, PETRI_DIFFERENCE_MINUEND_PLACES=707, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2047, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=70892, PETRI_PLACES=718, PETRI_TRANSITIONS=2140} [2021-03-25 08:45:00,478 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 703 predicate places. [2021-03-25 08:45:00,479 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:45:00,479 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 718 places, 2140 transitions, 70892 flow [2021-03-25 08:45:00,479 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 718 places, 2140 transitions, 70892 flow [2021-03-25 08:45:00,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 718 places, 2140 transitions, 70892 flow [2021-03-25 08:45:02,218 INFO L129 PetriNetUnfolder]: 1329/4411 cut-off events. [2021-03-25 08:45:02,218 INFO L130 PetriNetUnfolder]: For 229514/229528 co-relation queries the response was YES. [2021-03-25 08:45:02,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63309 conditions, 4411 events. 1329/4411 cut-off events. For 229514/229528 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 48276 event pairs, 0 based on Foata normal form. 1/4404 useless extension candidates. Maximal degree in co-relation 62952. Up to 994 conditions per place. [2021-03-25 08:45:02,373 INFO L142 LiptonReduction]: Number of co-enabled transitions 1136 [2021-03-25 08:45:04,490 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:45:04,490 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:45:04,490 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4011 [2021-03-25 08:45:04,490 INFO L480 AbstractCegarLoop]: Abstraction has has 715 places, 2137 transitions, 70926 flow [2021-03-25 08:45:04,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:04,490 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:45:04,490 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:45:04,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:45:04,691 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:45:04,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:45:04,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1190486788, now seen corresponding path program 1 times [2021-03-25 08:45:04,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:45:04,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334785193] [2021-03-25 08:45:04,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:45:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:45:04,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:04,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:04,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:04,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:04,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:04,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:04,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334785193] [2021-03-25 08:45:04,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043688966] [2021-03-25 08:45:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:45:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:45:04,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:45:04,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:45:04,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 Waiting until toolchain timeout for monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:45:04,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:04,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:04,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:04,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:04,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:04,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:04,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:04,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:04,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:04,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:04,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:04,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:45:04,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:04,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:04,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:45:04,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:45:04,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:45:04,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:04,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:45:04,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:45:04,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:04,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:45:04,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:45:04,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:45:04,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:45:04,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:04,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:45:04,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:45:04,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:04,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:45:04,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:45:04,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:04,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:04,853 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-25 08:45:04,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:45:04,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:04,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 08:45:04,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:45:04,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:04,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:04,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:45:04,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 08:45:04,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059917520] [2021-03-25 08:45:04,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:45:04,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:45:04,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:45:04,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:45:04,866 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 167 [2021-03-25 08:45:04,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 715 places, 2137 transitions, 70926 flow. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:04,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:45:04,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 167 [2021-03-25 08:45:04,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:45:10,971 INFO L129 PetriNetUnfolder]: 1359/4426 cut-off events. [2021-03-25 08:45:10,971 INFO L130 PetriNetUnfolder]: For 243285/243340 co-relation queries the response was YES. [2021-03-25 08:45:11,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67779 conditions, 4426 events. 1359/4426 cut-off events. For 243285/243340 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 47532 event pairs, 0 based on Foata normal form. 51/4469 useless extension candidates. Maximal degree in co-relation 67370. Up to 3326 conditions per place. [2021-03-25 08:45:11,079 INFO L132 encePairwiseOnDemand]: 120/167 looper letters, 1897 selfloop transitions, 314 changer transitions 17/2232 dead transitions. [2021-03-25 08:45:11,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 739 places, 2232 transitions, 78366 flow [2021-03-25 08:45:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-25 08:45:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-03-25 08:45:11,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 398 transitions. [2021-03-25 08:45:11,081 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.08826790862719007 [2021-03-25 08:45:11,081 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 398 transitions. [2021-03-25 08:45:11,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 398 transitions. [2021-03-25 08:45:11,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:45:11,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 398 transitions. [2021-03-25 08:45:11,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 14.74074074074074) internal successors, (398), 27 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:11,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 167.0) internal successors, (4676), 28 states have internal predecessors, (4676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:11,084 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 167.0) internal successors, (4676), 28 states have internal predecessors, (4676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:11,084 INFO L185 Difference]: Start difference. First operand has 715 places, 2137 transitions, 70926 flow. Second operand 27 states and 398 transitions. [2021-03-25 08:45:11,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 739 places, 2232 transitions, 78366 flow [2021-03-25 08:45:15,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 734 places, 2232 transitions, 77498 flow, removed 409 selfloop flow, removed 5 redundant places. [2021-03-25 08:45:15,264 INFO L241 Difference]: Finished difference. Result has 752 places, 2182 transitions, 72823 flow [2021-03-25 08:45:15,265 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=69738, PETRI_DIFFERENCE_MINUEND_PLACES=708, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1846, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=72823, PETRI_PLACES=752, PETRI_TRANSITIONS=2182} [2021-03-25 08:45:15,265 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 737 predicate places. [2021-03-25 08:45:15,265 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:45:15,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 752 places, 2182 transitions, 72823 flow [2021-03-25 08:45:15,265 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 752 places, 2182 transitions, 72823 flow [2021-03-25 08:45:15,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 752 places, 2182 transitions, 72823 flow [2021-03-25 08:45:17,086 INFO L129 PetriNetUnfolder]: 1356/4408 cut-off events. [2021-03-25 08:45:17,086 INFO L130 PetriNetUnfolder]: For 241272/241440 co-relation queries the response was YES. [2021-03-25 08:45:17,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63962 conditions, 4408 events. 1356/4408 cut-off events. For 241272/241440 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 47686 event pairs, 0 based on Foata normal form. 0/4400 useless extension candidates. Maximal degree in co-relation 63487. Up to 1017 conditions per place. [2021-03-25 08:45:17,240 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 08:45:17,713 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:45:17,713 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:45:17,713 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2448 [2021-03-25 08:45:17,713 INFO L480 AbstractCegarLoop]: Abstraction has has 752 places, 2182 transitions, 72823 flow [2021-03-25 08:45:17,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:17,713 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:45:17,713 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:45:17,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,118 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:45:17,914 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:45:17,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:45:17,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1934026194, now seen corresponding path program 1 times [2021-03-25 08:45:17,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:45:17,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780537362] [2021-03-25 08:45:17,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:45:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:45:17,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:17,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:17,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780537362] [2021-03-25 08:45:17,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262212432] [2021-03-25 08:45:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:45:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:45:17,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:45:17,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:45:17,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:17,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:17,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:17,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:17,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:17,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:17,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:17,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:17,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:17,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:17,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:17,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:45:17,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:45:17,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,979 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:45:17,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:17,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:17,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:17,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:17,984 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:45:17,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:17,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:17,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:45:17,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:45:17,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034623539] [2021-03-25 08:45:17,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:45:17,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:45:17,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:45:17,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:45:17,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 167 [2021-03-25 08:45:17,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 752 places, 2182 transitions, 72823 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:17,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:45:17,988 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 167 [2021-03-25 08:45:17,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:45:22,579 INFO L129 PetriNetUnfolder]: 1355/4401 cut-off events. [2021-03-25 08:45:22,580 INFO L130 PetriNetUnfolder]: For 241846/241933 co-relation queries the response was YES. [2021-03-25 08:45:22,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67556 conditions, 4401 events. 1355/4401 cut-off events. For 241846/241933 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 47174 event pairs, 0 based on Foata normal form. 10/4403 useless extension candidates. Maximal degree in co-relation 67069. Up to 3501 conditions per place. [2021-03-25 08:45:22,678 INFO L132 encePairwiseOnDemand]: 119/167 looper letters, 2042 selfloop transitions, 141 changer transitions 1/2188 dead transitions. [2021-03-25 08:45:22,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 760 places, 2188 transitions, 77370 flow [2021-03-25 08:45:22,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:45:22,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:45:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2021-03-25 08:45:22,679 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10978043912175649 [2021-03-25 08:45:22,679 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 165 transitions. [2021-03-25 08:45:22,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 165 transitions. [2021-03-25 08:45:22,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:45:22,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 165 transitions. [2021-03-25 08:45:22,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:22,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:22,680 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:22,680 INFO L185 Difference]: Start difference. First operand has 752 places, 2182 transitions, 72823 flow. Second operand 9 states and 165 transitions. [2021-03-25 08:45:22,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 760 places, 2188 transitions, 77370 flow [2021-03-25 08:45:26,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 756 places, 2188 transitions, 76274 flow, removed 402 selfloop flow, removed 4 redundant places. [2021-03-25 08:45:26,832 INFO L241 Difference]: Finished difference. Result has 757 places, 2182 transitions, 72134 flow [2021-03-25 08:45:26,833 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=71707, PETRI_DIFFERENCE_MINUEND_PLACES=748, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2040, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=72134, PETRI_PLACES=757, PETRI_TRANSITIONS=2182} [2021-03-25 08:45:26,833 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 742 predicate places. [2021-03-25 08:45:26,833 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:45:26,833 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 757 places, 2182 transitions, 72134 flow [2021-03-25 08:45:26,833 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 757 places, 2182 transitions, 72134 flow [2021-03-25 08:45:26,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 757 places, 2182 transitions, 72134 flow [2021-03-25 08:45:28,734 INFO L129 PetriNetUnfolder]: 1355/4423 cut-off events. [2021-03-25 08:45:28,734 INFO L130 PetriNetUnfolder]: For 232501/233146 co-relation queries the response was YES. [2021-03-25 08:45:28,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63605 conditions, 4423 events. 1355/4423 cut-off events. For 232501/233146 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 47847 event pairs, 0 based on Foata normal form. 1/4416 useless extension candidates. Maximal degree in co-relation 63143. Up to 1017 conditions per place. [2021-03-25 08:45:28,866 INFO L142 LiptonReduction]: Number of co-enabled transitions 1120 [2021-03-25 08:45:29,354 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:45:29,354 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:45:29,354 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2521 [2021-03-25 08:45:29,354 INFO L480 AbstractCegarLoop]: Abstraction has has 757 places, 2182 transitions, 72134 flow [2021-03-25 08:45:29,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:29,355 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:45:29,355 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:45:29,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable120 [2021-03-25 08:45:29,560 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:45:29,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:45:29,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1406657951, now seen corresponding path program 1 times [2021-03-25 08:45:29,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:45:29,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837956370] [2021-03-25 08:45:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:45:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:45:29,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:29,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:29,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:29,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837956370] [2021-03-25 08:45:29,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193703769] [2021-03-25 08:45:29,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:45:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:45:29,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:45:29,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:45:29,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:29,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:29,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:29,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:29,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:29,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:29,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:29,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:29,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:29,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:29,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:29,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:29,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:29,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:29,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:29,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:29,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:29,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:29,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:29,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:29,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:29,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:29,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:29,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:29,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:29,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:29,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:45:29,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:45:29,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:29,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:45:29,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:45:29,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:29,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:29,648 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:45:29,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:29,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:29,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:45:29,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:45:29,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:29,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:29,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:29,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:29,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:29,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:29,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:29,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:29,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:29,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:45:29,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:45:29,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412283585] [2021-03-25 08:45:29,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:45:29,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:45:29,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:45:29,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:45:29,655 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 167 [2021-03-25 08:45:29,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 757 places, 2182 transitions, 72134 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:29,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:45:29,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 167 [2021-03-25 08:45:29,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:45:34,206 INFO L129 PetriNetUnfolder]: 1357/4418 cut-off events. [2021-03-25 08:45:34,206 INFO L130 PetriNetUnfolder]: For 233034/233034 co-relation queries the response was YES. [2021-03-25 08:45:34,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67444 conditions, 4418 events. 1357/4418 cut-off events. For 233034/233034 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 47421 event pairs, 0 based on Foata normal form. 1/4411 useless extension candidates. Maximal degree in co-relation 66970. Up to 3582 conditions per place. [2021-03-25 08:45:34,311 INFO L132 encePairwiseOnDemand]: 123/167 looper letters, 2109 selfloop transitions, 75 changer transitions 0/2188 dead transitions. [2021-03-25 08:45:34,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 765 places, 2188 transitions, 77038 flow [2021-03-25 08:45:34,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:45:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:45:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 161 transitions. [2021-03-25 08:45:34,312 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10711909514304724 [2021-03-25 08:45:34,312 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 161 transitions. [2021-03-25 08:45:34,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 161 transitions. [2021-03-25 08:45:34,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:45:34,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 161 transitions. [2021-03-25 08:45:34,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:34,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:34,313 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:34,313 INFO L185 Difference]: Start difference. First operand has 757 places, 2182 transitions, 72134 flow. Second operand 9 states and 161 transitions. [2021-03-25 08:45:34,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 765 places, 2188 transitions, 77038 flow [2021-03-25 08:45:38,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 759 places, 2188 transitions, 76854 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-03-25 08:45:38,551 INFO L241 Difference]: Finished difference. Result has 762 places, 2186 transitions, 72535 flow [2021-03-25 08:45:38,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=71950, PETRI_DIFFERENCE_MINUEND_PLACES=751, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=72535, PETRI_PLACES=762, PETRI_TRANSITIONS=2186} [2021-03-25 08:45:38,552 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 747 predicate places. [2021-03-25 08:45:38,552 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:45:38,552 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 762 places, 2186 transitions, 72535 flow [2021-03-25 08:45:38,552 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 762 places, 2186 transitions, 72535 flow [2021-03-25 08:45:38,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 762 places, 2186 transitions, 72535 flow [2021-03-25 08:45:40,517 INFO L129 PetriNetUnfolder]: 1357/4429 cut-off events. [2021-03-25 08:45:40,517 INFO L130 PetriNetUnfolder]: For 234503/234724 co-relation queries the response was YES. [2021-03-25 08:45:40,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63860 conditions, 4429 events. 1357/4429 cut-off events. For 234503/234724 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 47838 event pairs, 0 based on Foata normal form. 2/4423 useless extension candidates. Maximal degree in co-relation 63429. Up to 1019 conditions per place. [2021-03-25 08:45:40,649 INFO L142 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-25 08:45:41,202 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:45:41,203 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:45:41,203 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2651 [2021-03-25 08:45:41,203 INFO L480 AbstractCegarLoop]: Abstraction has has 762 places, 2186 transitions, 72535 flow [2021-03-25 08:45:41,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:41,203 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:45:41,203 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:45:41,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,120 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:45:41,403 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:45:41,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:45:41,404 INFO L82 PathProgramCache]: Analyzing trace with hash -466684039, now seen corresponding path program 1 times [2021-03-25 08:45:41,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:45:41,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844018167] [2021-03-25 08:45:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:45:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:45:41,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:41,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,449 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:45:41,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:41,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844018167] [2021-03-25 08:45:41,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916391109] [2021-03-25 08:45:41,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:45:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:45:41,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:45:41,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:45:41,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:41,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:41,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:41,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:41,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:41,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:41,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:41,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:41,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:41,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:41,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:41,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:41,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:45:41,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:45:41,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:45:41,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:45:41,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:45:41,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:41,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:45:41,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:45:41,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:45:41,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:45:41,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:41,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:45:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:41,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:45:41,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:45:41,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638125127] [2021-03-25 08:45:41,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:45:41,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:45:41,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:45:41,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:45:41,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 167 [2021-03-25 08:45:41,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 762 places, 2186 transitions, 72535 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:41,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:45:41,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 167 [2021-03-25 08:45:41,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:45:46,188 INFO L129 PetriNetUnfolder]: 1379/4482 cut-off events. [2021-03-25 08:45:46,188 INFO L130 PetriNetUnfolder]: For 251275/253743 co-relation queries the response was YES. [2021-03-25 08:45:46,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69338 conditions, 4482 events. 1379/4482 cut-off events. For 251275/253743 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 48241 event pairs, 0 based on Foata normal form. 18/4492 useless extension candidates. Maximal degree in co-relation 68861. Up to 3628 conditions per place. [2021-03-25 08:45:46,298 INFO L132 encePairwiseOnDemand]: 124/167 looper letters, 2153 selfloop transitions, 76 changer transitions 1/2234 dead transitions. [2021-03-25 08:45:46,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 769 places, 2234 transitions, 79869 flow [2021-03-25 08:45:46,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:45:46,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:45:46,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 157 transitions. [2021-03-25 08:45:46,299 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11751497005988024 [2021-03-25 08:45:46,299 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 157 transitions. [2021-03-25 08:45:46,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 157 transitions. [2021-03-25 08:45:46,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:45:46,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 157 transitions. [2021-03-25 08:45:46,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.625) internal successors, (157), 8 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:46,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 167.0) internal successors, (1503), 9 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:46,300 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 167.0) internal successors, (1503), 9 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:46,300 INFO L185 Difference]: Start difference. First operand has 762 places, 2186 transitions, 72535 flow. Second operand 8 states and 157 transitions. [2021-03-25 08:45:46,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 769 places, 2234 transitions, 79869 flow [2021-03-25 08:45:50,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 764 places, 2234 transitions, 79481 flow, removed 88 selfloop flow, removed 5 redundant places. [2021-03-25 08:45:50,541 INFO L241 Difference]: Finished difference. Result has 768 places, 2214 transitions, 74094 flow [2021-03-25 08:45:50,542 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=72238, PETRI_DIFFERENCE_MINUEND_PLACES=757, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=74094, PETRI_PLACES=768, PETRI_TRANSITIONS=2214} [2021-03-25 08:45:50,542 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 753 predicate places. [2021-03-25 08:45:50,542 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:45:50,542 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 768 places, 2214 transitions, 74094 flow [2021-03-25 08:45:50,542 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 768 places, 2214 transitions, 74094 flow [2021-03-25 08:45:50,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 768 places, 2214 transitions, 74094 flow [2021-03-25 08:45:52,495 INFO L129 PetriNetUnfolder]: 1379/4503 cut-off events. [2021-03-25 08:45:52,495 INFO L130 PetriNetUnfolder]: For 246762/246804 co-relation queries the response was YES. [2021-03-25 08:45:52,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65993 conditions, 4503 events. 1379/4503 cut-off events. For 246762/246804 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 48843 event pairs, 0 based on Foata normal form. 0/4495 useless extension candidates. Maximal degree in co-relation 65613. Up to 1042 conditions per place. [2021-03-25 08:45:52,656 INFO L142 LiptonReduction]: Number of co-enabled transitions 1154 [2021-03-25 08:45:55,095 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:45:55,096 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:45:55,096 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4554 [2021-03-25 08:45:55,096 INFO L480 AbstractCegarLoop]: Abstraction has has 765 places, 2211 transitions, 74129 flow [2021-03-25 08:45:55,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:55,096 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:45:55,096 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:45:55,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122,121 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:45:55,298 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:45:55,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:45:55,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1329473146, now seen corresponding path program 3 times [2021-03-25 08:45:55,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:45:55,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803430479] [2021-03-25 08:45:55,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:45:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:45:55,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:45:55,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:55,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:55,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:45:55,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:55,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803430479] [2021-03-25 08:45:55,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606945743] [2021-03-25 08:45:55,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:45:55,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-03-25 08:45:55,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:45:55,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:45:55,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:45:55,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:45:55,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:55,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:55,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:55,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:55,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:45:55,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:45:55,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:45:55,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:45:55,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:55,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:55,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:45:55,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:55,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:55,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:45:55,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:45:55,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:45:55,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:55,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:45:55,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:45:55,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:55,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:45:55,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:45:55,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:55,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:45:55,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:55,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:45:55,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:45:55,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:55,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:45:55,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:45:55,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:45:55,418 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-25 08:45:55,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:45:55,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:45:55,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 08:45:55,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:45:55,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:55,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:55,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:55,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:55,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:45:55,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:45:55,427 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:45:55,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:45:55,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 08:45:55,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199108839] [2021-03-25 08:45:55,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:45:55,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:45:55,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:45:55,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:45:55,428 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 171 [2021-03-25 08:45:55,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 765 places, 2211 transitions, 74129 flow. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:45:55,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:45:55,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 171 [2021-03-25 08:45:55,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:46:02,138 INFO L129 PetriNetUnfolder]: 1494/4829 cut-off events. [2021-03-25 08:46:02,139 INFO L130 PetriNetUnfolder]: For 302864/303084 co-relation queries the response was YES. [2021-03-25 08:46:02,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77756 conditions, 4829 events. 1494/4829 cut-off events. For 302864/303084 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 52633 event pairs, 0 based on Foata normal form. 23/4844 useless extension candidates. Maximal degree in co-relation 77310. Up to 1827 conditions per place. [2021-03-25 08:46:02,258 INFO L132 encePairwiseOnDemand]: 116/171 looper letters, 1293 selfloop transitions, 1166 changer transitions 2/2465 dead transitions. [2021-03-25 08:46:02,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 781 places, 2465 transitions, 92253 flow [2021-03-25 08:46:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 08:46:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 08:46:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 283 transitions. [2021-03-25 08:46:02,259 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.09735122119023047 [2021-03-25 08:46:02,259 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 283 transitions. [2021-03-25 08:46:02,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 283 transitions. [2021-03-25 08:46:02,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:46:02,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 283 transitions. [2021-03-25 08:46:02,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.647058823529413) internal successors, (283), 17 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:02,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 171.0) internal successors, (3078), 18 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:02,261 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 171.0) internal successors, (3078), 18 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:02,261 INFO L185 Difference]: Start difference. First operand has 765 places, 2211 transitions, 74129 flow. Second operand 17 states and 283 transitions. [2021-03-25 08:46:02,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 781 places, 2465 transitions, 92253 flow [2021-03-25 08:46:07,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 776 places, 2465 transitions, 91000 flow, removed 601 selfloop flow, removed 5 redundant places. [2021-03-25 08:46:07,504 INFO L241 Difference]: Finished difference. Result has 782 places, 2369 transitions, 84853 flow [2021-03-25 08:46:07,505 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=73029, PETRI_DIFFERENCE_MINUEND_PLACES=760, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=84853, PETRI_PLACES=782, PETRI_TRANSITIONS=2369} [2021-03-25 08:46:07,505 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 767 predicate places. [2021-03-25 08:46:07,505 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:46:07,505 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 782 places, 2369 transitions, 84853 flow [2021-03-25 08:46:07,505 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 782 places, 2369 transitions, 84853 flow [2021-03-25 08:46:07,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 782 places, 2369 transitions, 84853 flow [2021-03-25 08:46:10,063 INFO L129 PetriNetUnfolder]: 1494/4834 cut-off events. [2021-03-25 08:46:10,063 INFO L130 PetriNetUnfolder]: For 303088/303102 co-relation queries the response was YES. [2021-03-25 08:46:10,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74818 conditions, 4834 events. 1494/4834 cut-off events. For 303088/303102 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 53060 event pairs, 0 based on Foata normal form. 1/4827 useless extension candidates. Maximal degree in co-relation 74345. Up to 1148 conditions per place. [2021-03-25 08:46:10,218 INFO L142 LiptonReduction]: Number of co-enabled transitions 1276 [2021-03-25 08:46:11,560 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:46:11,560 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:46:11,560 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4055 [2021-03-25 08:46:11,561 INFO L480 AbstractCegarLoop]: Abstraction has has 782 places, 2369 transitions, 84855 flow [2021-03-25 08:46:11,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:11,561 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:46:11,561 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:46:11,761 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2021-03-25 08:46:11,761 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:46:11,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:46:11,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1600646898, now seen corresponding path program 1 times [2021-03-25 08:46:11,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:46:11,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059846747] [2021-03-25 08:46:11,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:46:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:46:11,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:11,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:46:11,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059846747] [2021-03-25 08:46:11,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535067519] [2021-03-25 08:46:11,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:46:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:46:11,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:46:11,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:46:11,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:11,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:11,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:11,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:11,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:11,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:11,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:11,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:11,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:11,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:11,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:11,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:11,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:11,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:11,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:46:11,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:46:11,823 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:46:11,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:11,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:11,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:11,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:11,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:11,831 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:46:11,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:11,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:46:11,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:46:11,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:46:11,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57456361] [2021-03-25 08:46:11,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:46:11,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:46:11,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:46:11,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:46:11,836 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 172 [2021-03-25 08:46:11,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 2369 transitions, 84855 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:11,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:46:11,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 172 [2021-03-25 08:46:11,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:46:17,785 INFO L129 PetriNetUnfolder]: 1493/4854 cut-off events. [2021-03-25 08:46:17,785 INFO L130 PetriNetUnfolder]: For 307230/307387 co-relation queries the response was YES. [2021-03-25 08:46:17,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78779 conditions, 4854 events. 1493/4854 cut-off events. For 307230/307387 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 53090 event pairs, 0 based on Foata normal form. 10/4856 useless extension candidates. Maximal degree in co-relation 78293. Up to 3840 conditions per place. [2021-03-25 08:46:17,900 INFO L132 encePairwiseOnDemand]: 122/172 looper letters, 2225 selfloop transitions, 144 changer transitions 1/2374 dead transitions. [2021-03-25 08:46:17,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 2374 transitions, 89752 flow [2021-03-25 08:46:17,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:46:17,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:46:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 167 transitions. [2021-03-25 08:46:17,901 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1078811369509044 [2021-03-25 08:46:17,901 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 167 transitions. [2021-03-25 08:46:17,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 167 transitions. [2021-03-25 08:46:17,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:46:17,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 167 transitions. [2021-03-25 08:46:17,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.555555555555557) internal successors, (167), 9 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:17,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 172.0) internal successors, (1720), 10 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:17,902 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 172.0) internal successors, (1720), 10 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:17,902 INFO L185 Difference]: Start difference. First operand has 782 places, 2369 transitions, 84855 flow. Second operand 9 states and 167 transitions. [2021-03-25 08:46:17,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 790 places, 2374 transitions, 89752 flow [2021-03-25 08:46:23,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 775 places, 2374 transitions, 85608 flow, removed 1813 selfloop flow, removed 15 redundant places. [2021-03-25 08:46:23,197 INFO L241 Difference]: Finished difference. Result has 776 places, 2368 transitions, 81093 flow [2021-03-25 08:46:23,198 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=80688, PETRI_DIFFERENCE_MINUEND_PLACES=767, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=81093, PETRI_PLACES=776, PETRI_TRANSITIONS=2368} [2021-03-25 08:46:23,198 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 761 predicate places. [2021-03-25 08:46:23,198 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:46:23,198 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 776 places, 2368 transitions, 81093 flow [2021-03-25 08:46:23,198 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 776 places, 2368 transitions, 81093 flow [2021-03-25 08:46:23,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 776 places, 2368 transitions, 81093 flow [2021-03-25 08:46:25,496 INFO L129 PetriNetUnfolder]: 1493/4831 cut-off events. [2021-03-25 08:46:25,496 INFO L130 PetriNetUnfolder]: For 245646/245798 co-relation queries the response was YES. [2021-03-25 08:46:25,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70673 conditions, 4831 events. 1493/4831 cut-off events. For 245646/245798 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 53011 event pairs, 0 based on Foata normal form. 1/4824 useless extension candidates. Maximal degree in co-relation 70216. Up to 1109 conditions per place. [2021-03-25 08:46:25,642 INFO L142 LiptonReduction]: Number of co-enabled transitions 1274 [2021-03-25 08:46:26,377 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:46:26,377 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:46:26,378 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3180 [2021-03-25 08:46:26,378 INFO L480 AbstractCegarLoop]: Abstraction has has 776 places, 2368 transitions, 81093 flow [2021-03-25 08:46:26,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:26,378 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:46:26,378 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:46:26,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124,123 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:46:26,580 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:46:26,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:46:26,580 INFO L82 PathProgramCache]: Analyzing trace with hash 195044693, now seen corresponding path program 1 times [2021-03-25 08:46:26,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:46:26,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783201329] [2021-03-25 08:46:26,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:46:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:46:26,584 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:46:26,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:26,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:46:26,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783201329] [2021-03-25 08:46:26,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165067938] [2021-03-25 08:46:26,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:46:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:46:26,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:46:26,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:46:26,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:26,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:26,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:46:26,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:46:26,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:26,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:46:26,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:46:26,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:46:26,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:46:26,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:26,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:46:26,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:46:26,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:26,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:46:26,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:46:26,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:46:26,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:26,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:46:26,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:46:26,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:26,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:46:26,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:46:26,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,660 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size 25 [2021-03-25 08:46:26,661 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size [2021-03-25 08:46:26,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:46:26,673 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 08:46:26,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:46:26,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:26,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 08:46:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 08:46:26,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:26,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:26,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:26,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:26,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:26,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:26,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:46:26,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:46:26,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 08:46:26,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630276082] [2021-03-25 08:46:26,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:46:26,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:46:26,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:46:26,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:46:26,692 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 172 [2021-03-25 08:46:26,692 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 776 places, 2368 transitions, 81093 flow. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:26,692 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:46:26,692 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 172 [2021-03-25 08:46:26,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:46:32,029 INFO L129 PetriNetUnfolder]: 1495/4862 cut-off events. [2021-03-25 08:46:32,029 INFO L130 PetriNetUnfolder]: For 252449/253244 co-relation queries the response was YES. [2021-03-25 08:46:32,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74914 conditions, 4862 events. 1495/4862 cut-off events. For 252449/253244 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 53160 event pairs, 0 based on Foata normal form. 21/4875 useless extension candidates. Maximal degree in co-relation 74444. Up to 3896 conditions per place. [2021-03-25 08:46:32,146 INFO L132 encePairwiseOnDemand]: 127/172 looper letters, 2289 selfloop transitions, 96 changer transitions 0/2389 dead transitions. [2021-03-25 08:46:32,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 782 places, 2389 transitions, 87045 flow [2021-03-25 08:46:32,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:46:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:46:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2021-03-25 08:46:32,147 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12292358803986711 [2021-03-25 08:46:32,147 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 148 transitions. [2021-03-25 08:46:32,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 148 transitions. [2021-03-25 08:46:32,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:46:32,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 148 transitions. [2021-03-25 08:46:32,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:32,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:32,148 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:32,148 INFO L185 Difference]: Start difference. First operand has 776 places, 2368 transitions, 81093 flow. Second operand 7 states and 148 transitions. [2021-03-25 08:46:32,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 782 places, 2389 transitions, 87045 flow [2021-03-25 08:46:37,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 774 places, 2389 transitions, 86487 flow, removed 152 selfloop flow, removed 8 redundant places. [2021-03-25 08:46:37,125 INFO L241 Difference]: Finished difference. Result has 775 places, 2372 transitions, 81055 flow [2021-03-25 08:46:37,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=80557, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=81055, PETRI_PLACES=775, PETRI_TRANSITIONS=2372} [2021-03-25 08:46:37,126 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 760 predicate places. [2021-03-25 08:46:37,126 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:46:37,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 775 places, 2372 transitions, 81055 flow [2021-03-25 08:46:37,126 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 775 places, 2372 transitions, 81055 flow [2021-03-25 08:46:37,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 775 places, 2372 transitions, 81055 flow [2021-03-25 08:46:39,645 INFO L129 PetriNetUnfolder]: 1495/4841 cut-off events. [2021-03-25 08:46:39,645 INFO L130 PetriNetUnfolder]: For 242269/242395 co-relation queries the response was YES. [2021-03-25 08:46:39,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70576 conditions, 4841 events. 1495/4841 cut-off events. For 242269/242395 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 53130 event pairs, 0 based on Foata normal form. 2/4835 useless extension candidates. Maximal degree in co-relation 70120. Up to 1110 conditions per place. [2021-03-25 08:46:39,819 INFO L142 LiptonReduction]: Number of co-enabled transitions 1280 [2021-03-25 08:46:41,235 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:46:41,235 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:46:41,235 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4109 [2021-03-25 08:46:41,236 INFO L480 AbstractCegarLoop]: Abstraction has has 775 places, 2372 transitions, 81107 flow [2021-03-25 08:46:41,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:41,236 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:46:41,236 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:46:41,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2021-03-25 08:46:41,436 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:46:41,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:46:41,437 INFO L82 PathProgramCache]: Analyzing trace with hash -178838237, now seen corresponding path program 1 times [2021-03-25 08:46:41,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:46:41,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225316176] [2021-03-25 08:46:41,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:46:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:46:41,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:41,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:41,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:41,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:46:41,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225316176] [2021-03-25 08:46:41,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867802225] [2021-03-25 08:46:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:46:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:46:41,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:46:41,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:46:41,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:41,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:41,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:41,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:41,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:41,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:41,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:41,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:41,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:41,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:41,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:41,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:41,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:41,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:41,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:41,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:41,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:41,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:41,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:41,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:41,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:41,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:41,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:41,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:41,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:41,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:41,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:46:41,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:46:41,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:41,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:46:41,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:46:41,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:41,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:41,650 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:46:41,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:46:41,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:41,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:46:41,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:46:41,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:41,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:41,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:41,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:41,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:41,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:41,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:46:41,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:46:41,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:46:41,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482213899] [2021-03-25 08:46:41,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:46:41,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:46:41,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:46:41,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:46:41,657 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 173 [2021-03-25 08:46:41,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 2372 transitions, 81107 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:41,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:46:41,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 173 [2021-03-25 08:46:41,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:46:47,483 INFO L129 PetriNetUnfolder]: 1499/4875 cut-off events. [2021-03-25 08:46:47,483 INFO L130 PetriNetUnfolder]: For 247017/247124 co-relation queries the response was YES. [2021-03-25 08:46:47,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74865 conditions, 4875 events. 1499/4875 cut-off events. For 247017/247124 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 53330 event pairs, 0 based on Foata normal form. 12/4879 useless extension candidates. Maximal degree in co-relation 74396. Up to 3908 conditions per place. [2021-03-25 08:46:47,588 INFO L132 encePairwiseOnDemand]: 127/173 looper letters, 2285 selfloop transitions, 97 changer transitions 0/2386 dead transitions. [2021-03-25 08:46:47,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 2386 transitions, 86774 flow [2021-03-25 08:46:47,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:46:47,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:46:47,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 163 transitions. [2021-03-25 08:46:47,589 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10468850353243417 [2021-03-25 08:46:47,589 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 163 transitions. [2021-03-25 08:46:47,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 163 transitions. [2021-03-25 08:46:47,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:46:47,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 163 transitions. [2021-03-25 08:46:47,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.11111111111111) internal successors, (163), 9 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:47,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:47,590 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:47,590 INFO L185 Difference]: Start difference. First operand has 775 places, 2372 transitions, 81107 flow. Second operand 9 states and 163 transitions. [2021-03-25 08:46:47,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 783 places, 2386 transitions, 86774 flow [2021-03-25 08:46:52,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 782 places, 2386 transitions, 86689 flow, removed 21 selfloop flow, removed 1 redundant places. [2021-03-25 08:46:52,298 INFO L241 Difference]: Finished difference. Result has 785 places, 2377 transitions, 81768 flow [2021-03-25 08:46:52,298 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=81022, PETRI_DIFFERENCE_MINUEND_PLACES=774, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=81768, PETRI_PLACES=785, PETRI_TRANSITIONS=2377} [2021-03-25 08:46:52,299 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 770 predicate places. [2021-03-25 08:46:52,299 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:46:52,299 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 785 places, 2377 transitions, 81768 flow [2021-03-25 08:46:52,299 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 785 places, 2377 transitions, 81768 flow [2021-03-25 08:46:52,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 785 places, 2377 transitions, 81768 flow [2021-03-25 08:46:54,594 INFO L129 PetriNetUnfolder]: 1499/4846 cut-off events. [2021-03-25 08:46:54,594 INFO L130 PetriNetUnfolder]: For 247242/247412 co-relation queries the response was YES. [2021-03-25 08:46:54,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71025 conditions, 4846 events. 1499/4846 cut-off events. For 247242/247412 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 53113 event pairs, 0 based on Foata normal form. 1/4839 useless extension candidates. Maximal degree in co-relation 70565. Up to 1112 conditions per place. [2021-03-25 08:46:54,751 INFO L142 LiptonReduction]: Number of co-enabled transitions 1282 [2021-03-25 08:46:56,204 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:46:56,204 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:46:56,204 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3905 [2021-03-25 08:46:56,205 INFO L480 AbstractCegarLoop]: Abstraction has has 785 places, 2377 transitions, 81821 flow [2021-03-25 08:46:56,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:56,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:46:56,205 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:46:56,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126,125 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:46:56,409 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:46:56,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:46:56,409 INFO L82 PathProgramCache]: Analyzing trace with hash -688616372, now seen corresponding path program 1 times [2021-03-25 08:46:56,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:46:56,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273438263] [2021-03-25 08:46:56,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:46:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:46:56,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:56,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:56,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:56,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:46:56,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:56,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:46:56,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273438263] [2021-03-25 08:46:56,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852501843] [2021-03-25 08:46:56,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:46:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:46:56,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:46:56,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:46:56,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:46:56,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:56,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:56,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:56,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:56,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:56,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:56,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:56,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:46:56,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:56,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:56,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:56,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:46:56,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:56,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:46:56,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:46:56,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:56,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:46:56,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:46:56,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:56,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:46:56,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:56,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:46:56,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:46:56,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:56,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:46:56,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:46:56,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:46:56,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:46:56,514 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-03-25 08:46:56,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 08:46:56,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:46:56,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:46:56,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:46:56,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:56,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:56,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:56,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:56,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:56,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:56,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:56,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:46:56,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:46:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:46:56,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:46:56,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-03-25 08:46:56,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318672006] [2021-03-25 08:46:56,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 08:46:56,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:46:56,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 08:46:56,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-25 08:46:56,526 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 174 [2021-03-25 08:46:56,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 785 places, 2377 transitions, 81821 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:46:56,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:46:56,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 174 [2021-03-25 08:46:56,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:47:02,517 INFO L129 PetriNetUnfolder]: 1509/4895 cut-off events. [2021-03-25 08:47:02,517 INFO L130 PetriNetUnfolder]: For 254250/255324 co-relation queries the response was YES. [2021-03-25 08:47:02,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75527 conditions, 4895 events. 1509/4895 cut-off events. For 254250/255324 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 53464 event pairs, 0 based on Foata normal form. 25/4911 useless extension candidates. Maximal degree in co-relation 75049. Up to 3680 conditions per place. [2021-03-25 08:47:02,741 INFO L132 encePairwiseOnDemand]: 126/174 looper letters, 2045 selfloop transitions, 412 changer transitions 0/2461 dead transitions. [2021-03-25 08:47:02,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 795 places, 2461 transitions, 89446 flow [2021-03-25 08:47:02,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 08:47:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 08:47:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 188 transitions. [2021-03-25 08:47:02,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.09822361546499478 [2021-03-25 08:47:02,742 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 188 transitions. [2021-03-25 08:47:02,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 188 transitions. [2021-03-25 08:47:02,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:47:02,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 188 transitions. [2021-03-25 08:47:02,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:02,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 174.0) internal successors, (2088), 12 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:02,744 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 174.0) internal successors, (2088), 12 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:02,744 INFO L185 Difference]: Start difference. First operand has 785 places, 2377 transitions, 81821 flow. Second operand 11 states and 188 transitions. [2021-03-25 08:47:02,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 795 places, 2461 transitions, 89446 flow [2021-03-25 08:47:07,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 788 places, 2461 transitions, 88965 flow, removed 66 selfloop flow, removed 7 redundant places. [2021-03-25 08:47:07,527 INFO L241 Difference]: Finished difference. Result has 791 places, 2395 transitions, 83431 flow [2021-03-25 08:47:07,528 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=81344, PETRI_DIFFERENCE_MINUEND_PLACES=778, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=394, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=83431, PETRI_PLACES=791, PETRI_TRANSITIONS=2395} [2021-03-25 08:47:07,528 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 776 predicate places. [2021-03-25 08:47:07,528 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:47:07,528 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 791 places, 2395 transitions, 83431 flow [2021-03-25 08:47:07,529 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 791 places, 2395 transitions, 83431 flow [2021-03-25 08:47:07,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 791 places, 2395 transitions, 83431 flow [2021-03-25 08:47:09,992 INFO L129 PetriNetUnfolder]: 1509/4874 cut-off events. [2021-03-25 08:47:09,992 INFO L130 PetriNetUnfolder]: For 256462/256533 co-relation queries the response was YES. [2021-03-25 08:47:10,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72078 conditions, 4874 events. 1509/4874 cut-off events. For 256462/256533 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 53463 event pairs, 0 based on Foata normal form. 0/4866 useless extension candidates. Maximal degree in co-relation 71616. Up to 1117 conditions per place. [2021-03-25 08:47:10,142 INFO L142 LiptonReduction]: Number of co-enabled transitions 1300 [2021-03-25 08:47:12,595 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:47:12,595 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:47:12,595 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5067 [2021-03-25 08:47:12,596 INFO L480 AbstractCegarLoop]: Abstraction has has 789 places, 2393 transitions, 83407 flow [2021-03-25 08:47:12,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:12,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:47:12,596 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:47:12,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable127 [2021-03-25 08:47:12,800 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:47:12,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:47:12,800 INFO L82 PathProgramCache]: Analyzing trace with hash -717200677, now seen corresponding path program 1 times [2021-03-25 08:47:12,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:47:12,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946620945] [2021-03-25 08:47:12,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:47:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:47:12,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:47:12,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,820 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:47:12,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:47:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:47:12,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946620945] [2021-03-25 08:47:12,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318565750] [2021-03-25 08:47:12,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:47:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:47:12,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 08:47:12,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:47:12,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:12,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:12,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:12,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:12,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:12,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:12,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:12,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:12,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:12,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:12,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:12,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:12,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:12,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:47:12,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:47:12,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:47:12,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:47:12,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:12,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 08:47:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:47:12,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:47:12,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 5 [2021-03-25 08:47:12,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015736669] [2021-03-25 08:47:12,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:47:12,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:47:12,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:47:12,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:47:12,943 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 176 [2021-03-25 08:47:12,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 2393 transitions, 83407 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:12,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:47:12,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 176 [2021-03-25 08:47:12,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:47:19,909 INFO L129 PetriNetUnfolder]: 1509/4896 cut-off events. [2021-03-25 08:47:19,909 INFO L130 PetriNetUnfolder]: For 260303/260618 co-relation queries the response was YES. [2021-03-25 08:47:20,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76139 conditions, 4896 events. 1509/4896 cut-off events. For 260303/260618 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 53518 event pairs, 0 based on Foata normal form. 14/4902 useless extension candidates. Maximal degree in co-relation 75664. Up to 3977 conditions per place. [2021-03-25 08:47:20,026 INFO L132 encePairwiseOnDemand]: 130/176 looper letters, 2337 selfloop transitions, 53 changer transitions 1/2395 dead transitions. [2021-03-25 08:47:20,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 795 places, 2395 transitions, 88311 flow [2021-03-25 08:47:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:47:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:47:20,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 142 transitions. [2021-03-25 08:47:20,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11525974025974026 [2021-03-25 08:47:20,027 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 142 transitions. [2021-03-25 08:47:20,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 142 transitions. [2021-03-25 08:47:20,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:47:20,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 142 transitions. [2021-03-25 08:47:20,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:20,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:20,028 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:20,028 INFO L185 Difference]: Start difference. First operand has 789 places, 2393 transitions, 83407 flow. Second operand 7 states and 142 transitions. [2021-03-25 08:47:20,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 795 places, 2395 transitions, 88311 flow [2021-03-25 08:47:24,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 790 places, 2395 transitions, 87927 flow, removed 43 selfloop flow, removed 5 redundant places. [2021-03-25 08:47:24,995 INFO L241 Difference]: Finished difference. Result has 791 places, 2394 transitions, 83219 flow [2021-03-25 08:47:24,995 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=83029, PETRI_DIFFERENCE_MINUEND_PLACES=784, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=83219, PETRI_PLACES=791, PETRI_TRANSITIONS=2394} [2021-03-25 08:47:24,996 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 776 predicate places. [2021-03-25 08:47:24,996 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:47:24,996 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 791 places, 2394 transitions, 83219 flow [2021-03-25 08:47:24,996 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 791 places, 2394 transitions, 83219 flow [2021-03-25 08:47:25,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 791 places, 2394 transitions, 83219 flow [2021-03-25 08:47:27,529 INFO L129 PetriNetUnfolder]: 1509/4875 cut-off events. [2021-03-25 08:47:27,530 INFO L130 PetriNetUnfolder]: For 260696/261380 co-relation queries the response was YES. [2021-03-25 08:47:27,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72180 conditions, 4875 events. 1509/4875 cut-off events. For 260696/261380 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 53507 event pairs, 0 based on Foata normal form. 1/4868 useless extension candidates. Maximal degree in co-relation 71716. Up to 1117 conditions per place. [2021-03-25 08:47:27,680 INFO L142 LiptonReduction]: Number of co-enabled transitions 1298 [2021-03-25 08:47:30,148 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:47:30,148 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:47:30,148 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5152 [2021-03-25 08:47:30,148 INFO L480 AbstractCegarLoop]: Abstraction has has 788 places, 2392 transitions, 83195 flow [2021-03-25 08:47:30,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:30,148 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:47:30,148 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:47:30,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128,127 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:47:30,349 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:47:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:47:30,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1866266426, now seen corresponding path program 1 times [2021-03-25 08:47:30,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:47:30,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392203595] [2021-03-25 08:47:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:47:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:47:30,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:47:30,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:30,363 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:47:30,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:47:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:47:30,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392203595] [2021-03-25 08:47:30,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456341088] [2021-03-25 08:47:30,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 128 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 128 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:47:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:47:30,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:47:30,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:47:30,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:30,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:30,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:30,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:30,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:30,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:30,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:30,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:30,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:30,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:30,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:30,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:30,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:30,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:30,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:30,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:30,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:30,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:30,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:30,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:47:30,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:30,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:47:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:47:30,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:47:30,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3] total 3 [2021-03-25 08:47:30,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349632193] [2021-03-25 08:47:30,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 08:47:30,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:47:30,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 08:47:30,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 08:47:30,410 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 178 [2021-03-25 08:47:30,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 788 places, 2392 transitions, 83195 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:30,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:47:30,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 178 [2021-03-25 08:47:30,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:47:36,982 INFO L129 PetriNetUnfolder]: 1509/4905 cut-off events. [2021-03-25 08:47:36,982 INFO L130 PetriNetUnfolder]: For 261396/261588 co-relation queries the response was YES. [2021-03-25 08:47:37,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76238 conditions, 4905 events. 1509/4905 cut-off events. For 261396/261588 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 53666 event pairs, 0 based on Foata normal form. 15/4912 useless extension candidates. Maximal degree in co-relation 75761. Up to 3982 conditions per place. [2021-03-25 08:47:37,101 INFO L132 encePairwiseOnDemand]: 132/178 looper letters, 2343 selfloop transitions, 48 changer transitions 1/2396 dead transitions. [2021-03-25 08:47:37,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 2396 transitions, 88151 flow [2021-03-25 08:47:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 08:47:37,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 08:47:37,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2021-03-25 08:47:37,103 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13595505617977527 [2021-03-25 08:47:37,103 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 121 transitions. [2021-03-25 08:47:37,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 121 transitions. [2021-03-25 08:47:37,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:47:37,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 121 transitions. [2021-03-25 08:47:37,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:37,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:37,103 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:37,103 INFO L185 Difference]: Start difference. First operand has 788 places, 2392 transitions, 83195 flow. Second operand 5 states and 121 transitions. [2021-03-25 08:47:37,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 2396 transitions, 88151 flow [2021-03-25 08:47:41,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 785 places, 2396 transitions, 87903 flow, removed 40 selfloop flow, removed 7 redundant places. [2021-03-25 08:47:42,002 INFO L241 Difference]: Finished difference. Result has 787 places, 2395 transitions, 83193 flow [2021-03-25 08:47:42,003 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=82954, PETRI_DIFFERENCE_MINUEND_PLACES=781, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83193, PETRI_PLACES=787, PETRI_TRANSITIONS=2395} [2021-03-25 08:47:42,003 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 772 predicate places. [2021-03-25 08:47:42,003 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:47:42,003 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 787 places, 2395 transitions, 83193 flow [2021-03-25 08:47:42,003 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 787 places, 2395 transitions, 83193 flow [2021-03-25 08:47:42,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 787 places, 2395 transitions, 83193 flow [2021-03-25 08:47:44,426 INFO L129 PetriNetUnfolder]: 1509/4876 cut-off events. [2021-03-25 08:47:44,426 INFO L130 PetriNetUnfolder]: For 257638/257798 co-relation queries the response was YES. [2021-03-25 08:47:44,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72118 conditions, 4876 events. 1509/4876 cut-off events. For 257638/257798 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 53634 event pairs, 0 based on Foata normal form. 1/4869 useless extension candidates. Maximal degree in co-relation 71655. Up to 1117 conditions per place. [2021-03-25 08:47:44,579 INFO L142 LiptonReduction]: Number of co-enabled transitions 1298 [2021-03-25 08:47:46,062 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:47:46,062 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 08:47:46,063 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4060 [2021-03-25 08:47:46,063 INFO L480 AbstractCegarLoop]: Abstraction has has 786 places, 2394 transitions, 83226 flow [2021-03-25 08:47:46,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:46,063 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:47:46,063 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:47:46,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2021-03-25 08:47:46,268 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:47:46,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:47:46,268 INFO L82 PathProgramCache]: Analyzing trace with hash -684043493, now seen corresponding path program 1 times [2021-03-25 08:47:46,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:47:46,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189813368] [2021-03-25 08:47:46,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:47:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:47:46,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:47:46,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:46,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:46,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:47:46,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189813368] [2021-03-25 08:47:46,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273227205] [2021-03-25 08:47:46,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 129 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 129 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:47:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:47:46,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:47:46,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:47:46,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:46,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:46,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:46,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:46,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:46,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:46,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:46,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:47:46,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:47:46,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:47:46,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:47:46,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:47:46,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:47:46,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:47:46,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:47:46,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:47:46,322 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:47:46,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:47:46,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:47:46,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:47:46,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:47:46,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:46,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:46,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:46,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:46,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:46,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:47:46,327 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:47:46,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:47:46,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:47:46,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:47:46,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:47:46,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:47:46,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333937927] [2021-03-25 08:47:46,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:47:46,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:47:46,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:47:46,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:47:46,333 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 180 [2021-03-25 08:47:46,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 786 places, 2394 transitions, 83226 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:46,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:47:46,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 180 [2021-03-25 08:47:46,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:47:52,259 INFO L129 PetriNetUnfolder]: 1508/4901 cut-off events. [2021-03-25 08:47:52,259 INFO L130 PetriNetUnfolder]: For 263554/264459 co-relation queries the response was YES. [2021-03-25 08:47:52,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76136 conditions, 4901 events. 1508/4901 cut-off events. For 263554/264459 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 53597 event pairs, 0 based on Foata normal form. 13/4906 useless extension candidates. Maximal degree in co-relation 75660. Up to 3871 conditions per place. [2021-03-25 08:47:52,363 INFO L132 encePairwiseOnDemand]: 128/180 looper letters, 2247 selfloop transitions, 146 changer transitions 1/2398 dead transitions. [2021-03-25 08:47:52,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 794 places, 2398 transitions, 88149 flow [2021-03-25 08:47:52,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:47:52,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:47:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions. [2021-03-25 08:47:52,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10493827160493827 [2021-03-25 08:47:52,365 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 170 transitions. [2021-03-25 08:47:52,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 170 transitions. [2021-03-25 08:47:52,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:47:52,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 170 transitions. [2021-03-25 08:47:52,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:52,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 180.0) internal successors, (1800), 10 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:52,366 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 180.0) internal successors, (1800), 10 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:47:52,366 INFO L185 Difference]: Start difference. First operand has 786 places, 2394 transitions, 83226 flow. Second operand 9 states and 170 transitions. [2021-03-25 08:47:52,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 794 places, 2398 transitions, 88149 flow [2021-03-25 08:47:57,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 790 places, 2398 transitions, 87951 flow, removed 51 selfloop flow, removed 4 redundant places. [2021-03-25 08:47:57,294 INFO L241 Difference]: Finished difference. Result has 790 places, 2392 transitions, 83274 flow [2021-03-25 08:47:57,294 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=83010, PETRI_DIFFERENCE_MINUEND_PLACES=782, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=83274, PETRI_PLACES=790, PETRI_TRANSITIONS=2392} [2021-03-25 08:47:57,294 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 775 predicate places. [2021-03-25 08:47:57,294 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:47:57,294 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 790 places, 2392 transitions, 83274 flow [2021-03-25 08:47:57,294 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 790 places, 2392 transitions, 83274 flow [2021-03-25 08:47:57,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 790 places, 2392 transitions, 83274 flow [2021-03-25 08:47:59,328 INFO L129 PetriNetUnfolder]: 1508/4870 cut-off events. [2021-03-25 08:47:59,328 INFO L130 PetriNetUnfolder]: For 253103/253103 co-relation queries the response was YES. [2021-03-25 08:47:59,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71846 conditions, 4870 events. 1508/4870 cut-off events. For 253103/253103 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 53397 event pairs, 0 based on Foata normal form. 0/4862 useless extension candidates. Maximal degree in co-relation 71387. Up to 1117 conditions per place. [2021-03-25 08:47:59,706 INFO L142 LiptonReduction]: Number of co-enabled transitions 1292 [2021-03-25 08:48:00,278 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:48:00,278 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:48:00,278 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2984 [2021-03-25 08:48:00,278 INFO L480 AbstractCegarLoop]: Abstraction has has 790 places, 2392 transitions, 83274 flow [2021-03-25 08:48:00,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:00,279 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:48:00,279 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:48:00,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,129 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:48:00,479 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:48:00,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:48:00,479 INFO L82 PathProgramCache]: Analyzing trace with hash -42078463, now seen corresponding path program 1 times [2021-03-25 08:48:00,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:48:00,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970765980] [2021-03-25 08:48:00,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:48:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:48:00,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:00,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:00,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:00,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:00,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:00,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:00,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:48:00,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970765980] [2021-03-25 08:48:00,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:48:00,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:48:00,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456475844] [2021-03-25 08:48:00,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 08:48:00,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:48:00,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 08:48:00,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 08:48:00,492 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 180 [2021-03-25 08:48:00,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 790 places, 2392 transitions, 83274 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:00,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:48:00,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 180 [2021-03-25 08:48:00,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:48:05,795 INFO L129 PetriNetUnfolder]: 1507/4898 cut-off events. [2021-03-25 08:48:05,795 INFO L130 PetriNetUnfolder]: For 261157/261899 co-relation queries the response was YES. [2021-03-25 08:48:05,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75844 conditions, 4898 events. 1507/4898 cut-off events. For 261157/261899 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 53664 event pairs, 0 based on Foata normal form. 15/4905 useless extension candidates. Maximal degree in co-relation 75372. Up to 3949 conditions per place. [2021-03-25 08:48:05,914 INFO L132 encePairwiseOnDemand]: 131/180 looper letters, 2344 selfloop transitions, 47 changer transitions 1/2396 dead transitions. [2021-03-25 08:48:05,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 793 places, 2396 transitions, 88189 flow [2021-03-25 08:48:05,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 08:48:05,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 08:48:05,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2021-03-25 08:48:05,916 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15 [2021-03-25 08:48:05,916 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 108 transitions. [2021-03-25 08:48:05,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 108 transitions. [2021-03-25 08:48:05,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:48:05,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 108 transitions. [2021-03-25 08:48:05,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:05,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:05,916 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:05,916 INFO L185 Difference]: Start difference. First operand has 790 places, 2392 transitions, 83274 flow. Second operand 4 states and 108 transitions. [2021-03-25 08:48:05,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 793 places, 2396 transitions, 88189 flow [2021-03-25 08:48:10,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 785 places, 2396 transitions, 87893 flow, removed 1 selfloop flow, removed 8 redundant places. [2021-03-25 08:48:10,937 INFO L241 Difference]: Finished difference. Result has 785 places, 2390 transitions, 82984 flow [2021-03-25 08:48:10,937 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=82956, PETRI_DIFFERENCE_MINUEND_PLACES=782, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82984, PETRI_PLACES=785, PETRI_TRANSITIONS=2390} [2021-03-25 08:48:10,937 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 770 predicate places. [2021-03-25 08:48:10,937 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:48:10,938 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 785 places, 2390 transitions, 82984 flow [2021-03-25 08:48:10,938 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 785 places, 2390 transitions, 82984 flow [2021-03-25 08:48:10,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 785 places, 2390 transitions, 82984 flow [2021-03-25 08:48:13,321 INFO L129 PetriNetUnfolder]: 1507/4867 cut-off events. [2021-03-25 08:48:13,321 INFO L130 PetriNetUnfolder]: For 253476/253483 co-relation queries the response was YES. [2021-03-25 08:48:13,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71674 conditions, 4867 events. 1507/4867 cut-off events. For 253476/253483 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 53535 event pairs, 0 based on Foata normal form. 1/4860 useless extension candidates. Maximal degree in co-relation 71215. Up to 1116 conditions per place. [2021-03-25 08:48:13,486 INFO L142 LiptonReduction]: Number of co-enabled transitions 1288 [2021-03-25 08:48:14,161 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:48:14,161 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:48:14,161 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3224 [2021-03-25 08:48:14,161 INFO L480 AbstractCegarLoop]: Abstraction has has 785 places, 2390 transitions, 82984 flow [2021-03-25 08:48:14,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:14,161 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:48:14,162 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:48:14,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-25 08:48:14,162 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:48:14,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:48:14,162 INFO L82 PathProgramCache]: Analyzing trace with hash 2003987212, now seen corresponding path program 1 times [2021-03-25 08:48:14,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:48:14,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984498663] [2021-03-25 08:48:14,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:48:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:48:14,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:14,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:14,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:48:14,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984498663] [2021-03-25 08:48:14,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288833116] [2021-03-25 08:48:14,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:48:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:48:14,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:48:14,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:48:14,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:14,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:14,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:48:14,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:48:14,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:14,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:48:14,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:48:14,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:14,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:14,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:14,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:48:14,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:48:14,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:14,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:48:14,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:48:14,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:14,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:14,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:14,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:14,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:48:14,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:48:14,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:14,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:48:14,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:48:14,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:48:14,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:48:14,234 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:48:14,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:48:14,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:14,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:48:14,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:48:14,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:14,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:14,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:14,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:14,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:14,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:48:14,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:48:14,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:48:14,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216329957] [2021-03-25 08:48:14,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:48:14,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:48:14,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:48:14,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:48:14,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 180 [2021-03-25 08:48:14,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 785 places, 2390 transitions, 82984 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:14,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:48:14,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 180 [2021-03-25 08:48:14,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:48:19,731 INFO L129 PetriNetUnfolder]: 1507/4889 cut-off events. [2021-03-25 08:48:19,731 INFO L130 PetriNetUnfolder]: For 257385/257510 co-relation queries the response was YES. [2021-03-25 08:48:19,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75715 conditions, 4889 events. 1507/4889 cut-off events. For 257385/257510 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 53507 event pairs, 0 based on Foata normal form. 10/4891 useless extension candidates. Maximal degree in co-relation 75238. Up to 3945 conditions per place. [2021-03-25 08:48:19,836 INFO L132 encePairwiseOnDemand]: 133/180 looper letters, 2309 selfloop transitions, 81 changer transitions 0/2394 dead transitions. [2021-03-25 08:48:19,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 793 places, 2394 transitions, 88079 flow [2021-03-25 08:48:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:48:19,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:48:19,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 164 transitions. [2021-03-25 08:48:19,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10123456790123457 [2021-03-25 08:48:19,838 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 164 transitions. [2021-03-25 08:48:19,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 164 transitions. [2021-03-25 08:48:19,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:48:19,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 164 transitions. [2021-03-25 08:48:19,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:19,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 180.0) internal successors, (1800), 10 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:19,839 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 180.0) internal successors, (1800), 10 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:19,839 INFO L185 Difference]: Start difference. First operand has 785 places, 2390 transitions, 82984 flow. Second operand 9 states and 164 transitions. [2021-03-25 08:48:19,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 793 places, 2394 transitions, 88079 flow [2021-03-25 08:48:24,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 791 places, 2394 transitions, 87979 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 08:48:24,570 INFO L241 Difference]: Finished difference. Result has 793 places, 2392 transitions, 83318 flow [2021-03-25 08:48:24,571 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=82884, PETRI_DIFFERENCE_MINUEND_PLACES=783, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=83318, PETRI_PLACES=793, PETRI_TRANSITIONS=2392} [2021-03-25 08:48:24,571 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 778 predicate places. [2021-03-25 08:48:24,571 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:48:24,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 793 places, 2392 transitions, 83318 flow [2021-03-25 08:48:24,571 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 793 places, 2392 transitions, 83318 flow [2021-03-25 08:48:24,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 793 places, 2392 transitions, 83318 flow [2021-03-25 08:48:26,872 INFO L129 PetriNetUnfolder]: 1507/4868 cut-off events. [2021-03-25 08:48:26,872 INFO L130 PetriNetUnfolder]: For 255892/255964 co-relation queries the response was YES. [2021-03-25 08:48:26,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71793 conditions, 4868 events. 1507/4868 cut-off events. For 255892/255964 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 53526 event pairs, 0 based on Foata normal form. 0/4860 useless extension candidates. Maximal degree in co-relation 71332. Up to 1116 conditions per place. [2021-03-25 08:48:27,177 INFO L142 LiptonReduction]: Number of co-enabled transitions 1290 [2021-03-25 08:48:27,768 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:48:27,768 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:48:27,768 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3197 [2021-03-25 08:48:27,768 INFO L480 AbstractCegarLoop]: Abstraction has has 793 places, 2392 transitions, 83318 flow [2021-03-25 08:48:27,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:27,768 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:48:27,768 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:48:27,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132,130 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:48:27,969 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:48:27,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:48:27,969 INFO L82 PathProgramCache]: Analyzing trace with hash -2139829060, now seen corresponding path program 1 times [2021-03-25 08:48:27,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:48:27,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500070716] [2021-03-25 08:48:27,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:48:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:48:27,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:27,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:27,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:27,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:27,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:27,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:27,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:27,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:27,996 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:48:27,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:48:27,998 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:48:27,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500070716] [2021-03-25 08:48:27,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836614741] [2021-03-25 08:48:27,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 131 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 131 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:48:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:48:28,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:48:28,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:48:28,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:28,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:28,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:28,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:28,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:28,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:28,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:28,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:28,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:28,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:28,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:28,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:28,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:48:28,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:48:28,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:48:28,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:48:28,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:28,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:28,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:28,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:28,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:28,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:28,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:28,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:28,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:48:28,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:48:28,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:48:28,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:48:28,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:28,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:48:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:48:28,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:48:28,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:48:28,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939376429] [2021-03-25 08:48:28,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:48:28,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:48:28,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:48:28,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:48:28,110 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 180 [2021-03-25 08:48:28,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 793 places, 2392 transitions, 83318 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:28,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:48:28,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 180 [2021-03-25 08:48:28,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:48:33,629 INFO L129 PetriNetUnfolder]: 1529/4971 cut-off events. [2021-03-25 08:48:33,629 INFO L130 PetriNetUnfolder]: For 268836/269005 co-relation queries the response was YES. [2021-03-25 08:48:33,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77590 conditions, 4971 events. 1529/4971 cut-off events. For 268836/269005 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 54500 event pairs, 0 based on Foata normal form. 24/4987 useless extension candidates. Maximal degree in co-relation 77111. Up to 3994 conditions per place. [2021-03-25 08:48:33,857 INFO L132 encePairwiseOnDemand]: 134/180 looper letters, 2356 selfloop transitions, 80 changer transitions 1/2441 dead transitions. [2021-03-25 08:48:33,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 2441 transitions, 91008 flow [2021-03-25 08:48:33,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:48:33,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:48:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 160 transitions. [2021-03-25 08:48:33,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1111111111111111 [2021-03-25 08:48:33,858 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 160 transitions. [2021-03-25 08:48:33,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 160 transitions. [2021-03-25 08:48:33,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:48:33,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 160 transitions. [2021-03-25 08:48:33,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:33,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 180.0) internal successors, (1620), 9 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:33,859 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 180.0) internal successors, (1620), 9 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:33,859 INFO L185 Difference]: Start difference. First operand has 793 places, 2392 transitions, 83318 flow. Second operand 8 states and 160 transitions. [2021-03-25 08:48:33,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 800 places, 2441 transitions, 91008 flow [2021-03-25 08:48:38,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 795 places, 2441 transitions, 90735 flow, removed 82 selfloop flow, removed 5 redundant places. [2021-03-25 08:48:38,875 INFO L241 Difference]: Finished difference. Result has 799 places, 2421 transitions, 84979 flow [2021-03-25 08:48:38,876 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=83138, PETRI_DIFFERENCE_MINUEND_PLACES=788, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=84979, PETRI_PLACES=799, PETRI_TRANSITIONS=2421} [2021-03-25 08:48:38,876 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 784 predicate places. [2021-03-25 08:48:38,876 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:48:38,876 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 799 places, 2421 transitions, 84979 flow [2021-03-25 08:48:38,876 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 799 places, 2421 transitions, 84979 flow [2021-03-25 08:48:38,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 799 places, 2421 transitions, 84979 flow [2021-03-25 08:48:41,318 INFO L129 PetriNetUnfolder]: 1529/4940 cut-off events. [2021-03-25 08:48:41,318 INFO L130 PetriNetUnfolder]: For 267641/267708 co-relation queries the response was YES. [2021-03-25 08:48:41,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73915 conditions, 4940 events. 1529/4940 cut-off events. For 267641/267708 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 54333 event pairs, 0 based on Foata normal form. 1/4933 useless extension candidates. Maximal degree in co-relation 73529. Up to 1133 conditions per place. [2021-03-25 08:48:41,473 INFO L142 LiptonReduction]: Number of co-enabled transitions 1320 [2021-03-25 08:48:44,124 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:48:44,124 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:48:44,124 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5248 [2021-03-25 08:48:44,124 INFO L480 AbstractCegarLoop]: Abstraction has has 796 places, 2418 transitions, 85014 flow [2021-03-25 08:48:44,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:44,124 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:48:44,124 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:48:44,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133,131 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:48:44,325 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:48:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:48:44,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1418011998, now seen corresponding path program 2 times [2021-03-25 08:48:44,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:48:44,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707790857] [2021-03-25 08:48:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:48:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:48:44,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:48:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:44,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:44,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:48:44,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707790857] [2021-03-25 08:48:44,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885233023] [2021-03-25 08:48:44,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 132 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 132 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:48:44,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:48:44,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:48:44,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:48:44,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:48:44,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:48:44,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:44,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:48:44,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:48:44,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:44,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:48:44,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:48:44,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:44,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:48:44,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:44,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:48:44,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:44,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:48:44,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:48:44,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 08:48:44,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:44,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:48:44,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:48:44,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:44,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:48:44,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 08:48:44,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,433 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:48:44,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:48:44,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:44,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:48:44,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:48:44,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:48:44,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:44,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:48:44,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:48:44,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:48:44,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:48:44,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 08:48:44,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:44,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:44,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:44,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:44,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:44,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:44,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:44,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:48:44,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:48:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:48:44,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:48:44,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 08:48:44,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762768959] [2021-03-25 08:48:44,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:48:44,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:48:44,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:48:44,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:48:44,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 184 [2021-03-25 08:48:44,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 796 places, 2418 transitions, 85014 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:44,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:48:44,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 184 [2021-03-25 08:48:44,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:48:51,418 INFO L129 PetriNetUnfolder]: 1527/4924 cut-off events. [2021-03-25 08:48:51,418 INFO L130 PetriNetUnfolder]: For 276535/278042 co-relation queries the response was YES. [2021-03-25 08:48:51,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77655 conditions, 4924 events. 1527/4924 cut-off events. For 276535/278042 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 53741 event pairs, 0 based on Foata normal form. 30/4946 useless extension candidates. Maximal degree in co-relation 77214. Up to 2444 conditions per place. [2021-03-25 08:48:51,538 INFO L132 encePairwiseOnDemand]: 133/184 looper letters, 2116 selfloop transitions, 293 changer transitions 9/2422 dead transitions. [2021-03-25 08:48:51,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 810 places, 2422 transitions, 90098 flow [2021-03-25 08:48:51,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 08:48:51,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 08:48:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 251 transitions. [2021-03-25 08:48:51,539 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.08525815217391304 [2021-03-25 08:48:51,539 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 251 transitions. [2021-03-25 08:48:51,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 251 transitions. [2021-03-25 08:48:51,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:48:51,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 251 transitions. [2021-03-25 08:48:51,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 15.6875) internal successors, (251), 16 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:51,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 184.0) internal successors, (3128), 17 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:51,541 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 184.0) internal successors, (3128), 17 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:48:51,541 INFO L185 Difference]: Start difference. First operand has 796 places, 2418 transitions, 85014 flow. Second operand 16 states and 251 transitions. [2021-03-25 08:48:51,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 810 places, 2422 transitions, 90098 flow [2021-03-25 08:48:56,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 804 places, 2422 transitions, 89261 flow, removed 372 selfloop flow, removed 6 redundant places. [2021-03-25 08:48:56,867 INFO L241 Difference]: Finished difference. Result has 806 places, 2407 transitions, 84490 flow [2021-03-25 08:48:56,868 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=83878, PETRI_DIFFERENCE_MINUEND_PLACES=789, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=293, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=84490, PETRI_PLACES=806, PETRI_TRANSITIONS=2407} [2021-03-25 08:48:56,868 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 791 predicate places. [2021-03-25 08:48:56,868 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:48:56,868 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 806 places, 2407 transitions, 84490 flow [2021-03-25 08:48:56,868 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 806 places, 2407 transitions, 84490 flow [2021-03-25 08:48:56,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 806 places, 2407 transitions, 84490 flow [2021-03-25 08:48:59,467 INFO L129 PetriNetUnfolder]: 1527/4875 cut-off events. [2021-03-25 08:48:59,467 INFO L130 PetriNetUnfolder]: For 269871/270083 co-relation queries the response was YES. [2021-03-25 08:48:59,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73189 conditions, 4875 events. 1527/4875 cut-off events. For 269871/270083 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 53262 event pairs, 0 based on Foata normal form. 1/4868 useless extension candidates. Maximal degree in co-relation 72724. Up to 1134 conditions per place. [2021-03-25 08:48:59,619 INFO L142 LiptonReduction]: Number of co-enabled transitions 1292 [2021-03-25 08:49:03,355 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:49:03,355 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 08:49:03,355 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6487 [2021-03-25 08:49:03,355 INFO L480 AbstractCegarLoop]: Abstraction has has 803 places, 2404 transitions, 84461 flow [2021-03-25 08:49:03,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:03,355 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:49:03,355 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:49:03,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 132 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2021-03-25 08:49:03,556 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:49:03,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:49:03,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2072811352, now seen corresponding path program 1 times [2021-03-25 08:49:03,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:49:03,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886956168] [2021-03-25 08:49:03,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:49:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:49:03,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:03,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:03,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:03,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:49:03,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886956168] [2021-03-25 08:49:03,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168839501] [2021-03-25 08:49:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 133 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 133 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:49:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:49:03,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:49:03,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:49:03,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:03,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:03,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:03,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:03,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:03,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:03,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:03,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:03,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:03,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:03,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:49:03,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:03,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:03,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:49:03,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:49:03,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:49:03,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:03,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:03,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:03,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:03,612 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:49:03,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:03,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:03,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:03,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:49:03,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:03,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:03,615 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:49:03,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:03,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:49:03,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:49:03,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:49:03,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324912875] [2021-03-25 08:49:03,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:49:03,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:49:03,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:49:03,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:49:03,621 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 190 [2021-03-25 08:49:03,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 803 places, 2404 transitions, 84461 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:03,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:49:03,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 190 [2021-03-25 08:49:03,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:49:10,624 INFO L129 PetriNetUnfolder]: 1526/4881 cut-off events. [2021-03-25 08:49:10,624 INFO L130 PetriNetUnfolder]: For 277025/278472 co-relation queries the response was YES. [2021-03-25 08:49:10,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77142 conditions, 4881 events. 1526/4881 cut-off events. For 277025/278472 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 52951 event pairs, 0 based on Foata normal form. 14/4887 useless extension candidates. Maximal degree in co-relation 76664. Up to 3883 conditions per place. [2021-03-25 08:49:10,744 INFO L132 encePairwiseOnDemand]: 136/190 looper letters, 2255 selfloop transitions, 149 changer transitions 1/2409 dead transitions. [2021-03-25 08:49:10,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 811 places, 2409 transitions, 89433 flow [2021-03-25 08:49:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:49:10,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:49:10,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2021-03-25 08:49:10,745 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10116959064327485 [2021-03-25 08:49:10,745 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 173 transitions. [2021-03-25 08:49:10,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 173 transitions. [2021-03-25 08:49:10,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:49:10,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 173 transitions. [2021-03-25 08:49:10,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:10,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:10,746 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:10,746 INFO L185 Difference]: Start difference. First operand has 803 places, 2404 transitions, 84461 flow. Second operand 9 states and 173 transitions. [2021-03-25 08:49:10,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 811 places, 2409 transitions, 89433 flow [2021-03-25 08:49:15,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 798 places, 2409 transitions, 89108 flow, removed 60 selfloop flow, removed 13 redundant places. [2021-03-25 08:49:15,928 INFO L241 Difference]: Finished difference. Result has 799 places, 2403 transitions, 84541 flow [2021-03-25 08:49:15,929 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=84121, PETRI_DIFFERENCE_MINUEND_PLACES=790, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=84541, PETRI_PLACES=799, PETRI_TRANSITIONS=2403} [2021-03-25 08:49:15,929 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 784 predicate places. [2021-03-25 08:49:15,929 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:49:15,929 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 799 places, 2403 transitions, 84541 flow [2021-03-25 08:49:15,929 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 799 places, 2403 transitions, 84541 flow [2021-03-25 08:49:15,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 799 places, 2403 transitions, 84541 flow [2021-03-25 08:49:18,286 INFO L129 PetriNetUnfolder]: 1526/4867 cut-off events. [2021-03-25 08:49:18,286 INFO L130 PetriNetUnfolder]: For 273444/274362 co-relation queries the response was YES. [2021-03-25 08:49:18,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72895 conditions, 4867 events. 1526/4867 cut-off events. For 273444/274362 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 53174 event pairs, 0 based on Foata normal form. 0/4859 useless extension candidates. Maximal degree in co-relation 72432. Up to 1134 conditions per place. [2021-03-25 08:49:18,434 INFO L142 LiptonReduction]: Number of co-enabled transitions 1290 [2021-03-25 08:49:19,034 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:49:19,034 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:49:19,035 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3106 [2021-03-25 08:49:19,035 INFO L480 AbstractCegarLoop]: Abstraction has has 799 places, 2403 transitions, 84541 flow [2021-03-25 08:49:19,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:19,035 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:49:19,035 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:49:19,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 133 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2021-03-25 08:49:19,235 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:49:19,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:49:19,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1002942060, now seen corresponding path program 1 times [2021-03-25 08:49:19,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:49:19,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695049507] [2021-03-25 08:49:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:49:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:49:19,243 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:49:19,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:19,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:19,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:49:19,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695049507] [2021-03-25 08:49:19,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560092540] [2021-03-25 08:49:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:49:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:49:19,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 08:49:19,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:49:19,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 Waiting until toolchain timeout for monitored process 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:49:19,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:19,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:19,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:19,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:49:19,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:19,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:19,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:49:19,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:49:19,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:49:19,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:19,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:49:19,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:49:19,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:19,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:49:19,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:49:19,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,315 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-25 08:49:19,315 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 08:49:19,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:49:19,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:19,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:49:19,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:49:19,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:19,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:49:19,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:49:19,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:49:19,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:49:19,353 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 08:49:19,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:49:19,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:19,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 08:49:19,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 08:49:19,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:19,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:19,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:19,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:19,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:19,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:19,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:19,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:19,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:19,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:49:19,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:49:19,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 08:49:19,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994684560] [2021-03-25 08:49:19,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:49:19,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:49:19,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:49:19,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:49:19,368 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 190 [2021-03-25 08:49:19,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 799 places, 2403 transitions, 84541 flow. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:19,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:49:19,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 190 [2021-03-25 08:49:19,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:49:24,731 INFO L129 PetriNetUnfolder]: 1526/4884 cut-off events. [2021-03-25 08:49:24,732 INFO L130 PetriNetUnfolder]: For 275697/276836 co-relation queries the response was YES. [2021-03-25 08:49:24,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76931 conditions, 4884 events. 1526/4884 cut-off events. For 275697/276836 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 52988 event pairs, 0 based on Foata normal form. 13/4889 useless extension candidates. Maximal degree in co-relation 76448. Up to 3856 conditions per place. [2021-03-25 08:49:24,846 INFO L132 encePairwiseOnDemand]: 141/190 looper letters, 2292 selfloop transitions, 149 changer transitions 0/2445 dead transitions. [2021-03-25 08:49:24,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 805 places, 2445 transitions, 90676 flow [2021-03-25 08:49:24,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:49:24,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:49:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 150 transitions. [2021-03-25 08:49:24,847 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11278195488721804 [2021-03-25 08:49:24,847 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 150 transitions. [2021-03-25 08:49:24,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 150 transitions. [2021-03-25 08:49:24,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:49:24,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 150 transitions. [2021-03-25 08:49:24,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:24,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:24,848 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:24,848 INFO L185 Difference]: Start difference. First operand has 799 places, 2403 transitions, 84541 flow. Second operand 7 states and 150 transitions. [2021-03-25 08:49:24,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 805 places, 2445 transitions, 90676 flow [2021-03-25 08:49:30,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 800 places, 2445 transitions, 90450 flow, removed 29 selfloop flow, removed 5 redundant places. [2021-03-25 08:49:30,134 INFO L241 Difference]: Finished difference. Result has 801 places, 2404 transitions, 84744 flow [2021-03-25 08:49:30,135 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=84315, PETRI_DIFFERENCE_MINUEND_PLACES=794, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=84744, PETRI_PLACES=801, PETRI_TRANSITIONS=2404} [2021-03-25 08:49:30,135 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 786 predicate places. [2021-03-25 08:49:30,136 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:49:30,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 801 places, 2404 transitions, 84744 flow [2021-03-25 08:49:30,136 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 801 places, 2404 transitions, 84744 flow [2021-03-25 08:49:30,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 801 places, 2404 transitions, 84744 flow [2021-03-25 08:49:32,450 INFO L129 PetriNetUnfolder]: 1526/4868 cut-off events. [2021-03-25 08:49:32,450 INFO L130 PetriNetUnfolder]: For 269121/269121 co-relation queries the response was YES. [2021-03-25 08:49:32,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73011 conditions, 4868 events. 1526/4868 cut-off events. For 269121/269121 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 53129 event pairs, 0 based on Foata normal form. 0/4860 useless extension candidates. Maximal degree in co-relation 72536. Up to 1134 conditions per place. [2021-03-25 08:49:32,600 INFO L142 LiptonReduction]: Number of co-enabled transitions 1290 [2021-03-25 08:49:33,385 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:49:33,386 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:49:33,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3250 [2021-03-25 08:49:33,386 INFO L480 AbstractCegarLoop]: Abstraction has has 801 places, 2404 transitions, 84744 flow [2021-03-25 08:49:33,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:33,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:49:33,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:49:33,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 134 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable136 [2021-03-25 08:49:33,600 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:49:33,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:49:33,600 INFO L82 PathProgramCache]: Analyzing trace with hash -2052912893, now seen corresponding path program 1 times [2021-03-25 08:49:33,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:49:33,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228086212] [2021-03-25 08:49:33,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:49:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:49:33,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:33,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:33,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:49:33,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228086212] [2021-03-25 08:49:33,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367144296] [2021-03-25 08:49:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:49:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:49:33,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:49:33,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:49:33,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:33,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:33,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:33,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:33,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:33,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:33,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:33,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:49:33,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:33,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:33,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:49:33,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:33,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:33,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:49:33,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:33,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:33,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:33,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:33,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:49:33,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:33,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:33,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:49:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:33,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:33,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:33,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:49:33,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:49:33,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:33,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:49:33,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:49:33,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:49:33,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:49:33,668 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:49:33,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:49:33,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:33,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:49:33,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:49:33,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:33,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:33,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:33,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:33,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:33,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:33,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:33,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:33,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:49:33,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:49:33,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:49:33,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479465650] [2021-03-25 08:49:33,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:49:33,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:49:33,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:49:33,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:49:33,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 190 [2021-03-25 08:49:33,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 801 places, 2404 transitions, 84744 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:33,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:49:33,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 190 [2021-03-25 08:49:33,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:49:39,576 INFO L129 PetriNetUnfolder]: 1528/4890 cut-off events. [2021-03-25 08:49:39,576 INFO L130 PetriNetUnfolder]: For 277827/278134 co-relation queries the response was YES. [2021-03-25 08:49:39,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77269 conditions, 4890 events. 1528/4890 cut-off events. For 277827/278134 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 53115 event pairs, 0 based on Foata normal form. 13/4895 useless extension candidates. Maximal degree in co-relation 76792. Up to 3961 conditions per place. [2021-03-25 08:49:39,693 INFO L132 encePairwiseOnDemand]: 142/190 looper letters, 2323 selfloop transitions, 83 changer transitions 0/2410 dead transitions. [2021-03-25 08:49:39,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 809 places, 2410 transitions, 90066 flow [2021-03-25 08:49:39,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:49:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:49:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 169 transitions. [2021-03-25 08:49:39,694 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.09883040935672514 [2021-03-25 08:49:39,694 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 169 transitions. [2021-03-25 08:49:39,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 169 transitions. [2021-03-25 08:49:39,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:49:39,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 169 transitions. [2021-03-25 08:49:39,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:39,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:39,695 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:39,695 INFO L185 Difference]: Start difference. First operand has 801 places, 2404 transitions, 84744 flow. Second operand 9 states and 169 transitions. [2021-03-25 08:49:39,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 809 places, 2410 transitions, 90066 flow [2021-03-25 08:49:45,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 804 places, 2410 transitions, 89805 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-03-25 08:49:45,062 INFO L241 Difference]: Finished difference. Result has 807 places, 2408 transitions, 85120 flow [2021-03-25 08:49:45,063 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=84483, PETRI_DIFFERENCE_MINUEND_PLACES=796, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=85120, PETRI_PLACES=807, PETRI_TRANSITIONS=2408} [2021-03-25 08:49:45,063 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 792 predicate places. [2021-03-25 08:49:45,063 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:49:45,063 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 807 places, 2408 transitions, 85120 flow [2021-03-25 08:49:45,063 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 807 places, 2408 transitions, 85120 flow [2021-03-25 08:49:45,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 807 places, 2408 transitions, 85120 flow [2021-03-25 08:49:47,455 INFO L129 PetriNetUnfolder]: 1528/4874 cut-off events. [2021-03-25 08:49:47,455 INFO L130 PetriNetUnfolder]: For 276657/276941 co-relation queries the response was YES. [2021-03-25 08:49:47,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73250 conditions, 4874 events. 1528/4874 cut-off events. For 276657/276941 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 53139 event pairs, 0 based on Foata normal form. 2/4868 useless extension candidates. Maximal degree in co-relation 72795. Up to 1135 conditions per place. [2021-03-25 08:49:47,612 INFO L142 LiptonReduction]: Number of co-enabled transitions 1294 [2021-03-25 08:49:48,284 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:49:48,284 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:49:48,284 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3221 [2021-03-25 08:49:48,285 INFO L480 AbstractCegarLoop]: Abstraction has has 807 places, 2408 transitions, 85120 flow [2021-03-25 08:49:48,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:48,285 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:49:48,285 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:49:48,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137,135 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:49:48,485 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:49:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:49:48,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1029291786, now seen corresponding path program 2 times [2021-03-25 08:49:48,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:49:48,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372117268] [2021-03-25 08:49:48,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:49:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:49:48,496 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:49:48,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:49:48,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:48,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:49:48,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372117268] [2021-03-25 08:49:48,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223533248] [2021-03-25 08:49:48,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:49:48,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:49:48,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:49:48,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 08:49:48,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:49:48,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:49:48,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:48,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:48,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:49:48,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:48,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:49:48,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:49:48,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:49:48,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:49:48,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:48,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:49:48,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:49:48,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:48,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:49:48,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:49:48,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,575 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-25 08:49:48,576 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 08:49:48,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:49:48,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:48,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:49:48,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:49:48,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:48,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:49:48,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:49:48,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:49:48,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:49:48,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:48,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:49:48,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:49:48,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:48,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:49:48,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:49:48,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:49:48,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:49:48,623 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 08:49:48,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:49:48,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:49:48,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 08:49:48,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 08:49:48,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:48,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:48,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:48,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:48,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:48,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:48,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:48,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:49:48,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:49:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:49:48,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:49:48,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 08:49:48,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302961953] [2021-03-25 08:49:48,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 08:49:48,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:49:48,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 08:49:48,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-25 08:49:48,643 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 190 [2021-03-25 08:49:48,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 807 places, 2408 transitions, 85120 flow. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:48,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:49:48,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 190 [2021-03-25 08:49:48,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:49:54,038 INFO L129 PetriNetUnfolder]: 1528/4891 cut-off events. [2021-03-25 08:49:54,038 INFO L130 PetriNetUnfolder]: For 278623/278955 co-relation queries the response was YES. [2021-03-25 08:49:54,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77293 conditions, 4891 events. 1528/4891 cut-off events. For 278623/278955 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 53125 event pairs, 0 based on Foata normal form. 14/4897 useless extension candidates. Maximal degree in co-relation 76834. Up to 3768 conditions per place. [2021-03-25 08:49:54,147 INFO L132 encePairwiseOnDemand]: 141/190 looper letters, 2279 selfloop transitions, 199 changer transitions 0/2482 dead transitions. [2021-03-25 08:49:54,147 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 814 places, 2482 transitions, 92262 flow [2021-03-25 08:49:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:49:54,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:49:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 163 transitions. [2021-03-25 08:49:54,148 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10723684210526316 [2021-03-25 08:49:54,148 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 163 transitions. [2021-03-25 08:49:54,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 163 transitions. [2021-03-25 08:49:54,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:49:54,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 163 transitions. [2021-03-25 08:49:54,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:54,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 190.0) internal successors, (1710), 9 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:54,149 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 190.0) internal successors, (1710), 9 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:49:54,149 INFO L185 Difference]: Start difference. First operand has 807 places, 2408 transitions, 85120 flow. Second operand 8 states and 163 transitions. [2021-03-25 08:49:54,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 814 places, 2482 transitions, 92262 flow [2021-03-25 08:49:59,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 808 places, 2482 transitions, 91831 flow, removed 46 selfloop flow, removed 6 redundant places. [2021-03-25 08:49:59,152 INFO L241 Difference]: Finished difference. Result has 809 places, 2409 transitions, 85243 flow [2021-03-25 08:49:59,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=84689, PETRI_DIFFERENCE_MINUEND_PLACES=801, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=85243, PETRI_PLACES=809, PETRI_TRANSITIONS=2409} [2021-03-25 08:49:59,153 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 794 predicate places. [2021-03-25 08:49:59,153 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:49:59,153 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 809 places, 2409 transitions, 85243 flow [2021-03-25 08:49:59,153 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 809 places, 2409 transitions, 85243 flow [2021-03-25 08:49:59,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 809 places, 2409 transitions, 85243 flow [2021-03-25 08:50:01,343 INFO L129 PetriNetUnfolder]: 1528/4875 cut-off events. [2021-03-25 08:50:01,344 INFO L130 PetriNetUnfolder]: For 276394/276566 co-relation queries the response was YES. [2021-03-25 08:50:01,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73335 conditions, 4875 events. 1528/4875 cut-off events. For 276394/276566 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 53316 event pairs, 0 based on Foata normal form. 2/4869 useless extension candidates. Maximal degree in co-relation 72882. Up to 1134 conditions per place. [2021-03-25 08:50:01,708 INFO L142 LiptonReduction]: Number of co-enabled transitions 1294 [2021-03-25 08:50:02,320 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:50:02,321 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:50:02,321 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3168 [2021-03-25 08:50:02,321 INFO L480 AbstractCegarLoop]: Abstraction has has 809 places, 2409 transitions, 85243 flow [2021-03-25 08:50:02,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:02,321 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:50:02,321 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:50:02,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 136 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable138 [2021-03-25 08:50:02,521 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:50:02,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:50:02,522 INFO L82 PathProgramCache]: Analyzing trace with hash 783434253, now seen corresponding path program 1 times [2021-03-25 08:50:02,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:50:02,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095601739] [2021-03-25 08:50:02,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:50:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:50:02,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:02,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,579 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:50:02,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:02,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:50:02,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095601739] [2021-03-25 08:50:02,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585004603] [2021-03-25 08:50:02,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:50:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:50:02,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:50:02,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:50:02,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:02,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:02,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:02,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:02,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:02,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:02,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:02,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:02,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:02,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:02,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:02,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:02,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:50:02,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:50:02,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:50:02,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 08:50:02,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:50:02,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:50:02,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:50:02,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:50:02,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 08:50:02,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:02,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:50:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:50:02,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:50:02,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:50:02,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059782628] [2021-03-25 08:50:02,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:50:02,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:50:02,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:50:02,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:50:02,669 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 190 [2021-03-25 08:50:02,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 809 places, 2409 transitions, 85243 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:02,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:50:02,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 190 [2021-03-25 08:50:02,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:50:08,487 INFO L129 PetriNetUnfolder]: 1550/4959 cut-off events. [2021-03-25 08:50:08,488 INFO L130 PetriNetUnfolder]: For 294203/296597 co-relation queries the response was YES. [2021-03-25 08:50:08,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79124 conditions, 4959 events. 1550/4959 cut-off events. For 294203/296597 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 53918 event pairs, 0 based on Foata normal form. 15/4966 useless extension candidates. Maximal degree in co-relation 78637. Up to 4012 conditions per place. [2021-03-25 08:50:08,599 INFO L132 encePairwiseOnDemand]: 143/190 looper letters, 2372 selfloop transitions, 81 changer transitions 1/2458 dead transitions. [2021-03-25 08:50:08,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 816 places, 2458 transitions, 92948 flow [2021-03-25 08:50:08,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:50:08,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:50:08,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 165 transitions. [2021-03-25 08:50:08,601 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10855263157894737 [2021-03-25 08:50:08,601 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 165 transitions. [2021-03-25 08:50:08,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 165 transitions. [2021-03-25 08:50:08,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:50:08,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 165 transitions. [2021-03-25 08:50:08,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:08,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 190.0) internal successors, (1710), 9 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:08,601 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 190.0) internal successors, (1710), 9 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:08,601 INFO L185 Difference]: Start difference. First operand has 809 places, 2409 transitions, 85243 flow. Second operand 8 states and 165 transitions. [2021-03-25 08:50:08,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 816 places, 2458 transitions, 92948 flow [2021-03-25 08:50:13,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 810 places, 2458 transitions, 92614 flow, removed 17 selfloop flow, removed 6 redundant places. [2021-03-25 08:50:13,755 INFO L241 Difference]: Finished difference. Result has 814 places, 2438 transitions, 86810 flow [2021-03-25 08:50:13,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=84909, PETRI_DIFFERENCE_MINUEND_PLACES=803, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=86810, PETRI_PLACES=814, PETRI_TRANSITIONS=2438} [2021-03-25 08:50:13,755 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 799 predicate places. [2021-03-25 08:50:13,756 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:50:13,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 814 places, 2438 transitions, 86810 flow [2021-03-25 08:50:13,756 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 814 places, 2438 transitions, 86810 flow [2021-03-25 08:50:13,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 814 places, 2438 transitions, 86810 flow [2021-03-25 08:50:16,210 INFO L129 PetriNetUnfolder]: 1550/4947 cut-off events. [2021-03-25 08:50:16,210 INFO L130 PetriNetUnfolder]: For 285918/285918 co-relation queries the response was YES. [2021-03-25 08:50:16,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75413 conditions, 4947 events. 1550/4947 cut-off events. For 285918/285918 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 54120 event pairs, 0 based on Foata normal form. 0/4939 useless extension candidates. Maximal degree in co-relation 75018. Up to 1151 conditions per place. [2021-03-25 08:50:16,522 INFO L142 LiptonReduction]: Number of co-enabled transitions 1324 [2021-03-25 08:50:19,269 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 08:50:19,269 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 08:50:19,269 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5513 [2021-03-25 08:50:19,269 INFO L480 AbstractCegarLoop]: Abstraction has has 811 places, 2435 transitions, 86847 flow [2021-03-25 08:50:19,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:19,269 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:50:19,269 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:50:19,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139,137 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:50:19,470 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:50:19,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:50:19,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1846133292, now seen corresponding path program 3 times [2021-03-25 08:50:19,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:50:19,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185040211] [2021-03-25 08:50:19,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:50:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:50:19,484 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 08:50:19,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:19,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:50:19,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185040211] [2021-03-25 08:50:19,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772628299] [2021-03-25 08:50:19,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 138 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 138 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:50:19,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-25 08:50:19,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:50:19,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-25 08:50:19,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:50:19,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:19,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:19,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:50:19,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:19,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:50:19,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:50:19,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:50:19,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:50:19,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:50:19,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 08:50:19,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:50:19,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,598 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-25 08:50:19,599 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 08:50:19,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:50:19,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:50:19,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:50:19,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:50:19,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:50:19,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:50:19,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:50:19,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:50:19,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:50:19,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:50:19,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:50:19,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:50:19,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:50:19,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:50:19,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 08:50:19,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:50:19,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 08:50:19,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:50:19,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:50:19,712 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 08:50:19,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 08:50:19,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:19,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 08:50:19,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 08:50:19,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:19,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:19,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:19,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:19,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:19,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:19,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:19,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:19,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:50:19,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:50:19,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 08:50:19,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123067889] [2021-03-25 08:50:19,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 08:50:19,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:50:19,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 08:50:19,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-03-25 08:50:19,732 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 194 [2021-03-25 08:50:19,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 811 places, 2435 transitions, 86847 flow. Second operand has 14 states, 14 states have (on average 11.071428571428571) internal successors, (155), 14 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:19,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:50:19,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 194 [2021-03-25 08:50:19,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:50:28,040 INFO L129 PetriNetUnfolder]: 1594/5053 cut-off events. [2021-03-25 08:50:28,041 INFO L130 PetriNetUnfolder]: For 298106/298207 co-relation queries the response was YES. [2021-03-25 08:50:28,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81289 conditions, 5053 events. 1594/5053 cut-off events. For 298106/298207 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 54545 event pairs, 0 based on Foata normal form. 61/5106 useless extension candidates. Maximal degree in co-relation 80840. Up to 3821 conditions per place. [2021-03-25 08:50:28,166 INFO L132 encePairwiseOnDemand]: 144/194 looper letters, 2337 selfloop transitions, 249 changer transitions 0/2590 dead transitions. [2021-03-25 08:50:28,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 819 places, 2590 transitions, 96687 flow [2021-03-25 08:50:28,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:50:28,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:50:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 178 transitions. [2021-03-25 08:50:28,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10194730813287514 [2021-03-25 08:50:28,167 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 178 transitions. [2021-03-25 08:50:28,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 178 transitions. [2021-03-25 08:50:28,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:50:28,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 178 transitions. [2021-03-25 08:50:28,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 19.77777777777778) internal successors, (178), 9 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:28,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:28,168 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:28,168 INFO L185 Difference]: Start difference. First operand has 811 places, 2435 transitions, 86847 flow. Second operand 9 states and 178 transitions. [2021-03-25 08:50:28,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 819 places, 2590 transitions, 96687 flow [2021-03-25 08:50:34,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 814 places, 2590 transitions, 95892 flow, removed 370 selfloop flow, removed 5 redundant places. [2021-03-25 08:50:34,058 INFO L241 Difference]: Finished difference. Result has 815 places, 2484 transitions, 88216 flow [2021-03-25 08:50:34,059 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=86052, PETRI_DIFFERENCE_MINUEND_PLACES=806, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=88216, PETRI_PLACES=815, PETRI_TRANSITIONS=2484} [2021-03-25 08:50:34,059 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 800 predicate places. [2021-03-25 08:50:34,059 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:50:34,059 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 815 places, 2484 transitions, 88216 flow [2021-03-25 08:50:34,059 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 815 places, 2484 transitions, 88216 flow [2021-03-25 08:50:34,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 815 places, 2484 transitions, 88216 flow [2021-03-25 08:50:36,837 INFO L129 PetriNetUnfolder]: 1594/5068 cut-off events. [2021-03-25 08:50:36,838 INFO L130 PetriNetUnfolder]: For 292136/292137 co-relation queries the response was YES. [2021-03-25 08:50:36,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76865 conditions, 5068 events. 1594/5068 cut-off events. For 292136/292137 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 55242 event pairs, 0 based on Foata normal form. 1/5061 useless extension candidates. Maximal degree in co-relation 76388. Up to 1192 conditions per place. [2021-03-25 08:50:37,011 INFO L142 LiptonReduction]: Number of co-enabled transitions 1318 [2021-03-25 08:50:37,687 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:50:37,687 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:50:37,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3628 [2021-03-25 08:50:37,687 INFO L480 AbstractCegarLoop]: Abstraction has has 815 places, 2484 transitions, 88216 flow [2021-03-25 08:50:37,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.071428571428571) internal successors, (155), 14 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:37,687 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:50:37,688 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:50:37,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140,138 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:50:37,888 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:50:37,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:50:37,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1106262534, now seen corresponding path program 1 times [2021-03-25 08:50:37,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:50:37,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246542325] [2021-03-25 08:50:37,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:50:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:50:37,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:37,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:37,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:37,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:50:37,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246542325] [2021-03-25 08:50:37,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586521277] [2021-03-25 08:50:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 139 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 139 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:50:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:50:37,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 08:50:37,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:50:37,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:37,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:37,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:37,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:37,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:37,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:37,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:37,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:37,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:37,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:37,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:50:37,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:37,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:37,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:50:37,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:50:37,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:50:37,939 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 08:50:37,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:37,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:37,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:37,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:50:37,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:37,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:37,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:37,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:37,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:37,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:37,944 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 08:50:37,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:37,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:37,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:50:37,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:50:37,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-25 08:50:37,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945877995] [2021-03-25 08:50:37,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:50:37,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:50:37,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:50:37,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:50:37,951 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 194 [2021-03-25 08:50:37,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 815 places, 2484 transitions, 88216 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:37,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:50:37,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 194 [2021-03-25 08:50:37,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:50:44,257 INFO L129 PetriNetUnfolder]: 1593/5077 cut-off events. [2021-03-25 08:50:44,257 INFO L130 PetriNetUnfolder]: For 297204/297411 co-relation queries the response was YES. [2021-03-25 08:50:44,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81012 conditions, 5077 events. 1593/5077 cut-off events. For 297204/297411 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 54997 event pairs, 0 based on Foata normal form. 13/5082 useless extension candidates. Maximal degree in co-relation 80522. Up to 4034 conditions per place. [2021-03-25 08:50:44,382 INFO L132 encePairwiseOnDemand]: 139/194 looper letters, 2334 selfloop transitions, 151 changer transitions 1/2490 dead transitions. [2021-03-25 08:50:44,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 823 places, 2490 transitions, 93414 flow [2021-03-25 08:50:44,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:50:44,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:50:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2021-03-25 08:50:44,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.09965635738831616 [2021-03-25 08:50:44,383 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 174 transitions. [2021-03-25 08:50:44,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 174 transitions. [2021-03-25 08:50:44,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:50:44,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 174 transitions. [2021-03-25 08:50:44,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 19.333333333333332) internal successors, (174), 9 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:44,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:44,384 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:44,384 INFO L185 Difference]: Start difference. First operand has 815 places, 2484 transitions, 88216 flow. Second operand 9 states and 174 transitions. [2021-03-25 08:50:44,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 823 places, 2490 transitions, 93414 flow [2021-03-25 08:50:50,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 816 places, 2490 transitions, 92611 flow, removed 201 selfloop flow, removed 7 redundant places. [2021-03-25 08:50:50,235 INFO L241 Difference]: Finished difference. Result has 817 places, 2483 transitions, 87854 flow [2021-03-25 08:50:50,236 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=87428, PETRI_DIFFERENCE_MINUEND_PLACES=808, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=87854, PETRI_PLACES=817, PETRI_TRANSITIONS=2483} [2021-03-25 08:50:50,236 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 802 predicate places. [2021-03-25 08:50:50,236 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:50:50,236 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 817 places, 2483 transitions, 87854 flow [2021-03-25 08:50:50,236 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 817 places, 2483 transitions, 87854 flow [2021-03-25 08:50:50,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 817 places, 2483 transitions, 87854 flow [2021-03-25 08:50:52,773 INFO L129 PetriNetUnfolder]: 1593/5065 cut-off events. [2021-03-25 08:50:52,773 INFO L130 PetriNetUnfolder]: For 292256/292333 co-relation queries the response was YES. [2021-03-25 08:50:52,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76573 conditions, 5065 events. 1593/5065 cut-off events. For 292256/292333 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 55062 event pairs, 0 based on Foata normal form. 0/5057 useless extension candidates. Maximal degree in co-relation 76091. Up to 1192 conditions per place. [2021-03-25 08:50:52,927 INFO L142 LiptonReduction]: Number of co-enabled transitions 1316 [2021-03-25 08:50:53,564 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:50:53,564 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:50:53,565 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3329 [2021-03-25 08:50:53,565 INFO L480 AbstractCegarLoop]: Abstraction has has 817 places, 2483 transitions, 87854 flow [2021-03-25 08:50:53,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:53,565 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:50:53,565 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:50:53,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141,139 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:50:53,765 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:50:53,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:50:53,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1233962089, now seen corresponding path program 1 times [2021-03-25 08:50:53,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:50:53,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303880209] [2021-03-25 08:50:53,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:50:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:50:53,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:53,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:50:53,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303880209] [2021-03-25 08:50:53,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690932288] [2021-03-25 08:50:53,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 140 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 140 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:50:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:50:53,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 08:50:53,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:50:53,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:53,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:53,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:53,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:53,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:53,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:53,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:53,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:50:53,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:53,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:53,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:50:53,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:53,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:53,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:50:53,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:53,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:53,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:50:53,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:53,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:50:53,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:50:53,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:50:53,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:50:53,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:53,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:50:53,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:50:53,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:53,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:50:53,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:50:53,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:50:53,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 08:50:53,872 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-03-25 08:50:53,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:50:53,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:50:53,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:50:53,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 08:50:53,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:53,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:53,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:53,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:53,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:50:53,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:50:53,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:50:53,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:50:53,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 08:50:53,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595375796] [2021-03-25 08:50:53,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:50:53,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:50:53,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:50:53,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:50:53,889 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 194 [2021-03-25 08:50:53,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 817 places, 2483 transitions, 87854 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:50:53,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:50:53,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 194 [2021-03-25 08:50:53,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:50:59,941 INFO L129 PetriNetUnfolder]: 1595/5081 cut-off events. [2021-03-25 08:50:59,942 INFO L130 PetriNetUnfolder]: For 299723/299911 co-relation queries the response was YES. [2021-03-25 08:51:00,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80988 conditions, 5081 events. 1595/5081 cut-off events. For 299723/299911 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 55014 event pairs, 0 based on Foata normal form. 13/5086 useless extension candidates. Maximal degree in co-relation 80502. Up to 4116 conditions per place. [2021-03-25 08:51:00,065 INFO L132 encePairwiseOnDemand]: 145/194 looper letters, 2400 selfloop transitions, 85 changer transitions 0/2489 dead transitions. [2021-03-25 08:51:00,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 825 places, 2489 transitions, 93350 flow [2021-03-25 08:51:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 08:51:00,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 08:51:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions. [2021-03-25 08:51:00,066 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.09736540664375716 [2021-03-25 08:51:00,066 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 170 transitions. [2021-03-25 08:51:00,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 170 transitions. [2021-03-25 08:51:00,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:51:00,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 170 transitions. [2021-03-25 08:51:00,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:51:00,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:51:00,067 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:51:00,067 INFO L185 Difference]: Start difference. First operand has 817 places, 2483 transitions, 87854 flow. Second operand 9 states and 170 transitions. [2021-03-25 08:51:00,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 825 places, 2489 transitions, 93350 flow [2021-03-25 08:51:05,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 819 places, 2489 transitions, 93160 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-25 08:51:05,668 INFO L241 Difference]: Finished difference. Result has 822 places, 2487 transitions, 88317 flow [2021-03-25 08:51:05,669 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=87664, PETRI_DIFFERENCE_MINUEND_PLACES=811, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=88317, PETRI_PLACES=822, PETRI_TRANSITIONS=2487} [2021-03-25 08:51:05,669 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 807 predicate places. [2021-03-25 08:51:05,669 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:51:05,669 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 822 places, 2487 transitions, 88317 flow [2021-03-25 08:51:05,669 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 822 places, 2487 transitions, 88317 flow [2021-03-25 08:51:05,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 822 places, 2487 transitions, 88317 flow [2021-03-25 08:51:08,196 INFO L129 PetriNetUnfolder]: 1595/5071 cut-off events. [2021-03-25 08:51:08,196 INFO L130 PetriNetUnfolder]: For 297874/298051 co-relation queries the response was YES. [2021-03-25 08:51:08,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76859 conditions, 5071 events. 1595/5071 cut-off events. For 297874/298051 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 55244 event pairs, 0 based on Foata normal form. 2/5065 useless extension candidates. Maximal degree in co-relation 76393. Up to 1193 conditions per place. [2021-03-25 08:51:08,509 INFO L142 LiptonReduction]: Number of co-enabled transitions 1320 [2021-03-25 08:51:09,131 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:51:09,131 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:51:09,131 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3462 [2021-03-25 08:51:09,131 INFO L480 AbstractCegarLoop]: Abstraction has has 822 places, 2487 transitions, 88317 flow [2021-03-25 08:51:09,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:51:09,131 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:51:09,131 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:51:09,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,140 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:51:09,332 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:51:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:51:09,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1452646311, now seen corresponding path program 1 times [2021-03-25 08:51:09,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:51:09,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947744863] [2021-03-25 08:51:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:51:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:51:09,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:51:09,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:51:09,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:51:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:51:09,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947744863] [2021-03-25 08:51:09,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640856719] [2021-03-25 08:51:09,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 141 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:51:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:51:09,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 08:51:09,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 141 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:51:09,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:51:09,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:51:09,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:51:09,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:51:09,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:51:09,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:51:09,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:51:09,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:51:09,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:51:09,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:51:09,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:51:09,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:51:09,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:51:09,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:51:09,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:51:09,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:51:09,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:51:09,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:51:09,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:51:09,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:51:09,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 08:51:09,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:51:09,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:51:09,487 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:51:09,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:51:09,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2021-03-25 08:51:09,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809313720] [2021-03-25 08:51:09,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:51:09,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:51:09,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:51:09,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:51:09,488 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 194 [2021-03-25 08:51:09,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 822 places, 2487 transitions, 88317 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:51:09,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:51:09,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 194 [2021-03-25 08:51:09,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-03-25 08:51:13,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:51:13,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143,141 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:51:13,354 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-25 08:51:13,356 WARN L224 ceAbstractionStarter]: Timeout [2021-03-25 08:51:13,357 INFO L202 PluginConnector]: Adding new model exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 08:51:13 BasicIcfg [2021-03-25 08:51:13,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 08:51:13,357 INFO L168 Benchmark]: Toolchain (without parser) took 851989.06 ms. Allocated memory was 354.4 MB in the beginning and 8.9 GB in the end (delta: 8.5 GB). Free memory was 334.7 MB in the beginning and 4.7 GB in the end (delta: -4.4 GB). Peak memory consumption was 4.2 GB. Max. memory is 16.0 GB. [2021-03-25 08:51:13,357 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.52 ms. Allocated memory is still 354.4 MB. Free memory was 335.8 MB in the beginning and 335.8 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 08:51:13,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.47 ms. Allocated memory is still 354.4 MB. Free memory was 334.7 MB in the beginning and 333.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 08:51:13,358 INFO L168 Benchmark]: Boogie Preprocessor took 17.06 ms. Allocated memory is still 354.4 MB. Free memory was 333.2 MB in the beginning and 332.3 MB in the end (delta: 888.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 08:51:13,358 INFO L168 Benchmark]: RCFGBuilder took 191.76 ms. Allocated memory is still 354.4 MB. Free memory was 332.3 MB in the beginning and 322.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-25 08:51:13,358 INFO L168 Benchmark]: TraceAbstraction took 851750.67 ms. Allocated memory was 354.4 MB in the beginning and 8.9 GB in the end (delta: 8.5 GB). Free memory was 322.3 MB in the beginning and 4.7 GB in the end (delta: -4.4 GB). Peak memory consumption was 4.2 GB. Max. memory is 16.0 GB. [2021-03-25 08:51:13,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.52 ms. Allocated memory is still 354.4 MB. Free memory was 335.8 MB in the beginning and 335.8 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.47 ms. Allocated memory is still 354.4 MB. Free memory was 334.7 MB in the beginning and 333.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.06 ms. Allocated memory is still 354.4 MB. Free memory was 333.2 MB in the beginning and 332.3 MB in the end (delta: 888.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 191.76 ms. Allocated memory is still 354.4 MB. Free memory was 332.3 MB in the beginning and 322.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 851750.67 ms. Allocated memory was 354.4 MB in the beginning and 8.9 GB in the end (delta: 8.5 GB). Free memory was 322.3 MB in the beginning and 4.7 GB in the end (delta: -4.4 GB). Peak memory consumption was 4.2 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 206.3ms, 20 PlacesBefore, 15 PlacesAfterwards, 15 TransitionsBefore, 10 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 20 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 20, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1ms, 14 PlacesBefore, 14 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 22 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.2ms, 17 PlacesBefore, 16 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 14 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5ms, 20 PlacesBefore, 20 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9ms, 25 PlacesBefore, 25 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0ms, 30 PlacesBefore, 30 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.2ms, 35 PlacesBefore, 35 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 120.0ms, 49 PlacesBefore, 49 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.5ms, 60 PlacesBefore, 60 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 115.8ms, 64 PlacesBefore, 63 PlacesAfterwards, 83 TransitionsBefore, 82 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.3ms, 68 PlacesBefore, 65 PlacesAfterwards, 80 TransitionsBefore, 80 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 69.3ms, 72 PlacesBefore, 72 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.7ms, 82 PlacesBefore, 82 PlacesAfterwards, 136 TransitionsBefore, 136 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.1ms, 90 PlacesBefore, 90 PlacesAfterwards, 151 TransitionsBefore, 151 TransitionsAfterwards, 66 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.4ms, 93 PlacesBefore, 92 PlacesAfterwards, 146 TransitionsBefore, 146 TransitionsAfterwards, 66 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52.8ms, 100 PlacesBefore, 100 PlacesAfterwards, 165 TransitionsBefore, 165 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.5ms, 108 PlacesBefore, 108 PlacesAfterwards, 193 TransitionsBefore, 193 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.9ms, 121 PlacesBefore, 121 PlacesAfterwards, 230 TransitionsBefore, 230 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 254.8ms, 129 PlacesBefore, 128 PlacesAfterwards, 235 TransitionsBefore, 234 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 130.3ms, 132 PlacesBefore, 130 PlacesAfterwards, 234 TransitionsBefore, 232 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.3ms, 133 PlacesBefore, 133 PlacesAfterwards, 234 TransitionsBefore, 234 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.3ms, 138 PlacesBefore, 135 PlacesAfterwards, 231 TransitionsBefore, 231 TransitionsAfterwards, 112 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 118.1ms, 135 PlacesBefore, 130 PlacesAfterwards, 227 TransitionsBefore, 227 TransitionsAfterwards, 112 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.7ms, 137 PlacesBefore, 136 PlacesAfterwards, 231 TransitionsBefore, 230 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.6ms, 143 PlacesBefore, 143 PlacesAfterwards, 240 TransitionsBefore, 240 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 166.2ms, 145 PlacesBefore, 144 PlacesAfterwards, 262 TransitionsBefore, 261 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 121.6ms, 155 PlacesBefore, 155 PlacesAfterwards, 290 TransitionsBefore, 290 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 129.4ms, 159 PlacesBefore, 158 PlacesAfterwards, 295 TransitionsBefore, 294 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 136.6ms, 167 PlacesBefore, 166 PlacesAfterwards, 298 TransitionsBefore, 297 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.6ms, 169 PlacesBefore, 168 PlacesAfterwards, 299 TransitionsBefore, 298 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 158.1ms, 172 PlacesBefore, 171 PlacesAfterwards, 320 TransitionsBefore, 319 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 179.9ms, 174 PlacesBefore, 169 PlacesAfterwards, 316 TransitionsBefore, 316 TransitionsAfterwards, 162 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 193.3ms, 173 PlacesBefore, 172 PlacesAfterwards, 320 TransitionsBefore, 320 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 181.9ms, 180 PlacesBefore, 179 PlacesAfterwards, 324 TransitionsBefore, 323 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 88.8ms, 188 PlacesBefore, 188 PlacesAfterwards, 324 TransitionsBefore, 324 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 204.5ms, 188 PlacesBefore, 187 PlacesAfterwards, 346 TransitionsBefore, 345 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 353.7ms, 210 PlacesBefore, 210 PlacesAfterwards, 425 TransitionsBefore, 425 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 3 FixpointIterations, 5 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 249.1ms, 217 PlacesBefore, 216 PlacesAfterwards, 430 TransitionsBefore, 429 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 141.7ms, 221 PlacesBefore, 221 PlacesAfterwards, 449 TransitionsBefore, 449 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 255.8ms, 226 PlacesBefore, 225 PlacesAfterwards, 471 TransitionsBefore, 470 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 194.2ms, 234 PlacesBefore, 234 PlacesAfterwards, 511 TransitionsBefore, 511 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 307.5ms, 242 PlacesBefore, 241 PlacesAfterwards, 519 TransitionsBefore, 518 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 380.1ms, 248 PlacesBefore, 247 PlacesAfterwards, 522 TransitionsBefore, 521 TransitionsAfterwards, 266 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 204.9ms, 250 PlacesBefore, 250 PlacesAfterwards, 524 TransitionsBefore, 524 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 371.0ms, 254 PlacesBefore, 253 PlacesAfterwards, 546 TransitionsBefore, 545 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 240.6ms, 265 PlacesBefore, 265 PlacesAfterwards, 570 TransitionsBefore, 570 TransitionsAfterwards, 310 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 380.9ms, 269 PlacesBefore, 268 PlacesAfterwards, 577 TransitionsBefore, 576 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.5ms, 275 PlacesBefore, 275 PlacesAfterwards, 580 TransitionsBefore, 580 TransitionsAfterwards, 312 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 311.8ms, 281 PlacesBefore, 280 PlacesAfterwards, 592 TransitionsBefore, 591 TransitionsAfterwards, 312 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 246.3ms, 291 PlacesBefore, 291 PlacesAfterwards, 601 TransitionsBefore, 601 TransitionsAfterwards, 310 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 386.3ms, 292 PlacesBefore, 292 PlacesAfterwards, 628 TransitionsBefore, 628 TransitionsAfterwards, 338 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 322.7ms, 308 PlacesBefore, 308 PlacesAfterwards, 647 TransitionsBefore, 647 TransitionsAfterwards, 358 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 411.2ms, 313 PlacesBefore, 312 PlacesAfterwards, 653 TransitionsBefore, 652 TransitionsAfterwards, 364 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 535.7ms, 324 PlacesBefore, 319 PlacesAfterwards, 659 TransitionsBefore, 659 TransitionsAfterwards, 356 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.2ms, 324 PlacesBefore, 323 PlacesAfterwards, 686 TransitionsBefore, 685 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 478.7ms, 340 PlacesBefore, 339 PlacesAfterwards, 714 TransitionsBefore, 713 TransitionsAfterwards, 406 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 452.8ms, 343 PlacesBefore, 342 PlacesAfterwards, 719 TransitionsBefore, 719 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 563.4ms, 347 PlacesBefore, 346 PlacesAfterwards, 746 TransitionsBefore, 745 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 965.7ms, 362 PlacesBefore, 362 PlacesAfterwards, 901 TransitionsBefore, 901 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 519.3ms, 360 PlacesBefore, 360 PlacesAfterwards, 909 TransitionsBefore, 909 TransitionsAfterwards, 464 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 534.3ms, 368 PlacesBefore, 368 PlacesAfterwards, 913 TransitionsBefore, 913 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 720.1ms, 387 PlacesBefore, 386 PlacesAfterwards, 932 TransitionsBefore, 931 TransitionsAfterwards, 478 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 961.9ms, 389 PlacesBefore, 387 PlacesAfterwards, 959 TransitionsBefore, 957 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 658.4ms, 423 PlacesBefore, 423 PlacesAfterwards, 1002 TransitionsBefore, 1002 TransitionsAfterwards, 542 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 859.0ms, 428 PlacesBefore, 427 PlacesAfterwards, 1008 TransitionsBefore, 1007 TransitionsAfterwards, 548 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 810.1ms, 437 PlacesBefore, 432 PlacesAfterwards, 1007 TransitionsBefore, 1007 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 883.4ms, 435 PlacesBefore, 435 PlacesAfterwards, 1034 TransitionsBefore, 1034 TransitionsAfterwards, 568 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1188.9ms, 469 PlacesBefore, 468 PlacesAfterwards, 1196 TransitionsBefore, 1196 TransitionsAfterwards, 568 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1031.8ms, 473 PlacesBefore, 472 PlacesAfterwards, 1202 TransitionsBefore, 1201 TransitionsAfterwards, 574 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 784.1ms, 481 PlacesBefore, 476 PlacesAfterwards, 1199 TransitionsBefore, 1199 TransitionsAfterwards, 566 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1119.3ms, 475 PlacesBefore, 474 PlacesAfterwards, 1226 TransitionsBefore, 1225 TransitionsAfterwards, 594 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1222.4ms, 497 PlacesBefore, 497 PlacesAfterwards, 1287 TransitionsBefore, 1287 TransitionsAfterwards, 616 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 979.2ms, 498 PlacesBefore, 498 PlacesAfterwards, 1292 TransitionsBefore, 1292 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1179.9ms, 506 PlacesBefore, 505 PlacesAfterwards, 1286 TransitionsBefore, 1286 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1731.1ms, 505 PlacesBefore, 502 PlacesAfterwards, 1314 TransitionsBefore, 1311 TransitionsAfterwards, 650 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1010.7ms, 508 PlacesBefore, 508 PlacesAfterwards, 1339 TransitionsBefore, 1339 TransitionsAfterwards, 658 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1072.9ms, 515 PlacesBefore, 515 PlacesAfterwards, 1340 TransitionsBefore, 1340 TransitionsAfterwards, 656 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1014.9ms, 520 PlacesBefore, 520 PlacesAfterwards, 1344 TransitionsBefore, 1344 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1731.1ms, 526 PlacesBefore, 523 PlacesAfterwards, 1372 TransitionsBefore, 1369 TransitionsAfterwards, 690 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2740.3ms, 533 PlacesBefore, 528 PlacesAfterwards, 1441 TransitionsBefore, 1436 TransitionsAfterwards, 714 CoEnabledTransitionPairs, 4 FixpointIterations, 5 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1461.3ms, 536 PlacesBefore, 535 PlacesAfterwards, 1437 TransitionsBefore, 1436 TransitionsAfterwards, 712 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1214.6ms, 535 PlacesBefore, 531 PlacesAfterwards, 1432 TransitionsBefore, 1432 TransitionsAfterwards, 712 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1692.2ms, 540 PlacesBefore, 539 PlacesAfterwards, 1441 TransitionsBefore, 1440 TransitionsAfterwards, 712 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1441.8ms, 539 PlacesBefore, 539 PlacesAfterwards, 1444 TransitionsBefore, 1444 TransitionsAfterwards, 716 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1534.8ms, 541 PlacesBefore, 540 PlacesAfterwards, 1445 TransitionsBefore, 1444 TransitionsAfterwards, 716 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1248.8ms, 541 PlacesBefore, 535 PlacesAfterwards, 1441 TransitionsBefore, 1441 TransitionsAfterwards, 716 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1453.7ms, 542 PlacesBefore, 542 PlacesAfterwards, 1497 TransitionsBefore, 1497 TransitionsAfterwards, 716 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2553.6ms, 549 PlacesBefore, 546 PlacesAfterwards, 1525 TransitionsBefore, 1522 TransitionsAfterwards, 746 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1462.1ms, 559 PlacesBefore, 559 PlacesAfterwards, 1541 TransitionsBefore, 1541 TransitionsAfterwards, 740 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1414.9ms, 556 PlacesBefore, 556 PlacesAfterwards, 1541 TransitionsBefore, 1541 TransitionsAfterwards, 738 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1391.2ms, 561 PlacesBefore, 561 PlacesAfterwards, 1545 TransitionsBefore, 1545 TransitionsAfterwards, 742 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2474.0ms, 567 PlacesBefore, 565 PlacesAfterwards, 1573 TransitionsBefore, 1571 TransitionsAfterwards, 772 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 19, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1518.3ms, 571 PlacesBefore, 570 PlacesAfterwards, 1597 TransitionsBefore, 1597 TransitionsAfterwards, 802 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 19, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1529.5ms, 580 PlacesBefore, 577 PlacesAfterwards, 1595 TransitionsBefore, 1595 TransitionsAfterwards, 798 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 19, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1922.4ms, 578 PlacesBefore, 578 PlacesAfterwards, 1599 TransitionsBefore, 1599 TransitionsAfterwards, 802 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2431.6ms, 581 PlacesBefore, 578 PlacesAfterwards, 1601 TransitionsBefore, 1599 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2011.7ms, 586 PlacesBefore, 585 PlacesAfterwards, 1605 TransitionsBefore, 1604 TransitionsAfterwards, 806 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1493.9ms, 587 PlacesBefore, 586 PlacesAfterwards, 1602 TransitionsBefore, 1602 TransitionsAfterwards, 800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2040.7ms, 587 PlacesBefore, 587 PlacesAfterwards, 1629 TransitionsBefore, 1629 TransitionsAfterwards, 828 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1558.2ms, 608 PlacesBefore, 606 PlacesAfterwards, 1644 TransitionsBefore, 1644 TransitionsAfterwards, 832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1640.2ms, 606 PlacesBefore, 606 PlacesAfterwards, 1649 TransitionsBefore, 1649 TransitionsAfterwards, 836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2681.4ms, 613 PlacesBefore, 610 PlacesAfterwards, 1677 TransitionsBefore, 1674 TransitionsAfterwards, 866 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2903.7ms, 646 PlacesBefore, 646 PlacesAfterwards, 1932 TransitionsBefore, 1932 TransitionsAfterwards, 1048 CoEnabledTransitionPairs, 2 FixpointIterations, 4 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2023.2ms, 648 PlacesBefore, 647 PlacesAfterwards, 1930 TransitionsBefore, 1930 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3492.3ms, 651 PlacesBefore, 651 PlacesAfterwards, 1939 TransitionsBefore, 1939 TransitionsAfterwards, 1050 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3448.7ms, 656 PlacesBefore, 653 PlacesAfterwards, 1943 TransitionsBefore, 1941 TransitionsAfterwards, 1058 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3586.2ms, 662 PlacesBefore, 661 PlacesAfterwards, 1949 TransitionsBefore, 1948 TransitionsAfterwards, 1060 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1978.9ms, 658 PlacesBefore, 657 PlacesAfterwards, 1946 TransitionsBefore, 1946 TransitionsAfterwards, 1054 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2005.3ms, 661 PlacesBefore, 661 PlacesAfterwards, 1948 TransitionsBefore, 1948 TransitionsAfterwards, 1056 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1920.8ms, 666 PlacesBefore, 663 PlacesAfterwards, 1945 TransitionsBefore, 1945 TransitionsAfterwards, 1050 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2077.2ms, 670 PlacesBefore, 670 PlacesAfterwards, 1949 TransitionsBefore, 1949 TransitionsAfterwards, 1054 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3676.3ms, 677 PlacesBefore, 674 PlacesAfterwards, 1977 TransitionsBefore, 1974 TransitionsAfterwards, 1084 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2021.4ms, 678 PlacesBefore, 678 PlacesAfterwards, 2016 TransitionsBefore, 2016 TransitionsAfterwards, 1078 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2116.0ms, 683 PlacesBefore, 683 PlacesAfterwards, 2016 TransitionsBefore, 2016 TransitionsAfterwards, 1076 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2077.3ms, 688 PlacesBefore, 688 PlacesAfterwards, 2020 TransitionsBefore, 2020 TransitionsAfterwards, 1080 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3790.9ms, 694 PlacesBefore, 691 PlacesAfterwards, 2048 TransitionsBefore, 2045 TransitionsAfterwards, 1110 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2335.1ms, 706 PlacesBefore, 706 PlacesAfterwards, 2108 TransitionsBefore, 2108 TransitionsAfterwards, 1104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2318.8ms, 707 PlacesBefore, 707 PlacesAfterwards, 2108 TransitionsBefore, 2108 TransitionsAfterwards, 1102 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2268.6ms, 712 PlacesBefore, 712 PlacesAfterwards, 2112 TransitionsBefore, 2112 TransitionsAfterwards, 1106 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4011.1ms, 718 PlacesBefore, 715 PlacesAfterwards, 2140 TransitionsBefore, 2137 TransitionsAfterwards, 1136 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2447.7ms, 752 PlacesBefore, 752 PlacesAfterwards, 2182 TransitionsBefore, 2182 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2521.1ms, 757 PlacesBefore, 757 PlacesAfterwards, 2182 TransitionsBefore, 2182 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2650.2ms, 762 PlacesBefore, 762 PlacesAfterwards, 2186 TransitionsBefore, 2186 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4553.5ms, 768 PlacesBefore, 765 PlacesAfterwards, 2214 TransitionsBefore, 2211 TransitionsAfterwards, 1154 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4054.7ms, 782 PlacesBefore, 782 PlacesAfterwards, 2369 TransitionsBefore, 2369 TransitionsAfterwards, 1276 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3179.1ms, 776 PlacesBefore, 776 PlacesAfterwards, 2368 TransitionsBefore, 2368 TransitionsAfterwards, 1274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4109.4ms, 775 PlacesBefore, 775 PlacesAfterwards, 2372 TransitionsBefore, 2372 TransitionsAfterwards, 1280 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3904.9ms, 785 PlacesBefore, 785 PlacesAfterwards, 2377 TransitionsBefore, 2377 TransitionsAfterwards, 1282 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5066.8ms, 791 PlacesBefore, 789 PlacesAfterwards, 2395 TransitionsBefore, 2393 TransitionsAfterwards, 1300 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5151.9ms, 791 PlacesBefore, 788 PlacesAfterwards, 2394 TransitionsBefore, 2392 TransitionsAfterwards, 1298 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4059.5ms, 787 PlacesBefore, 786 PlacesAfterwards, 2395 TransitionsBefore, 2394 TransitionsAfterwards, 1298 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2983.7ms, 790 PlacesBefore, 790 PlacesAfterwards, 2392 TransitionsBefore, 2392 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3223.5ms, 785 PlacesBefore, 785 PlacesAfterwards, 2390 TransitionsBefore, 2390 TransitionsAfterwards, 1288 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3196.3ms, 793 PlacesBefore, 793 PlacesAfterwards, 2392 TransitionsBefore, 2392 TransitionsAfterwards, 1290 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5248.0ms, 799 PlacesBefore, 796 PlacesAfterwards, 2421 TransitionsBefore, 2418 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6486.4ms, 806 PlacesBefore, 803 PlacesAfterwards, 2407 TransitionsBefore, 2404 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 4 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3105.0ms, 799 PlacesBefore, 799 PlacesAfterwards, 2403 TransitionsBefore, 2403 TransitionsAfterwards, 1290 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3249.9ms, 801 PlacesBefore, 801 PlacesAfterwards, 2404 TransitionsBefore, 2404 TransitionsAfterwards, 1290 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3221.3ms, 807 PlacesBefore, 807 PlacesAfterwards, 2408 TransitionsBefore, 2408 TransitionsAfterwards, 1294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3167.6ms, 809 PlacesBefore, 809 PlacesAfterwards, 2409 TransitionsBefore, 2409 TransitionsAfterwards, 1294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5513.1ms, 814 PlacesBefore, 811 PlacesAfterwards, 2438 TransitionsBefore, 2435 TransitionsAfterwards, 1324 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3627.8ms, 815 PlacesBefore, 815 PlacesAfterwards, 2484 TransitionsBefore, 2484 TransitionsAfterwards, 1318 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3328.2ms, 817 PlacesBefore, 817 PlacesAfterwards, 2483 TransitionsBefore, 2483 TransitionsAfterwards, 1316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3461.7ms, 822 PlacesBefore, 822 PlacesAfterwards, 2487 TransitionsBefore, 2487 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 38]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 38). Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (8states, 10/194 universal loopers) in iteration 144,while PetriNetUnfolder was constructing finite prefix that currently has 53653 conditions, 2745 events (1027/2744 cut-off events. For 245926/246421 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 28254 event pairs, 0 based on Foata normal form. 41/3170 useless extension candidates. Maximal degree in co-relation 53328. Up to 2450 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 851624.8ms, OverallIterations: 144, TraceHistogramMax: 3, EmptinessCheckTime: 0.0ms, AutomataDifference: 594566.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 271.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1420 SDtfs, 1407 SDslu, 0 SDs, 0 SdLazy, 33912 SolverSat, 4114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14609.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2663 GetRequests, 970 SyntacticMatches, 271 SemanticMatches, 1422 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2655 ImplicationChecksByTransitivity, 10623.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=88317occurred in iteration=143, InterpolantAutomatonStates: 1389, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 236.1ms SsaConstructionTime, 780.5ms SatisfiabilityAnalysisTime, 12299.8ms InterpolantComputationTime, 3109 NumberOfCodeBlocks, 3109 NumberOfCodeBlocksAsserted, 312 NumberOfCheckSat, 2825 ConstructedInterpolants, 0 QuantifiedInterpolants, 18231 SizeOfPredicates, 179 NumberOfNonLiveVariables, 4328 ConjunctsInSsa, 900 ConjunctsInUnsatCore, 284 InterpolantComputations, 4 PerfectInterpolantSequences, 161/1205 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown