/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 18:14:55,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 18:14:55,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 18:14:55,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 18:14:55,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 18:14:55,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 18:14:55,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 18:14:55,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 18:14:55,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 18:14:55,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 18:14:55,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 18:14:55,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 18:14:55,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 18:14:55,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 18:14:55,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 18:14:55,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 18:14:55,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 18:14:55,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 18:14:55,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 18:14:55,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 18:14:55,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 18:14:55,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 18:14:55,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 18:14:55,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 18:14:55,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 18:14:55,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 18:14:55,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 18:14:55,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 18:14:55,739 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-RepeatedSemanticLbe.epf [2021-03-25 18:14:55,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 18:14:55,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 18:14:55,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 18:14:55,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 18:14:55,778 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 18:14:55,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 18:14:55,778 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 18:14:55,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 18:14:55,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 18:14:55,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 18:14:55,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 18:14:55,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 18:14:55,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 18:14:55,780 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 18:14:55,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 18:14:55,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 18:14:55,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 18:14:55,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 18:14:55,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 18:14:55,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 18:14:55,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 18:14:55,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 18:14:55,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 18:14:55,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 18:14:55,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 18:14:55,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 18:14:55,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 18:14:55,783 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 18:14:55,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 18:14:55,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 18:14:56,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 18:14:56,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 18:14:56,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 18:14:56,169 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 18:14:56,173 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 18:14:56,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl [2021-03-25 18:14:56,174 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl' [2021-03-25 18:14:56,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 18:14:56,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 18:14:56,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 18:14:56,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 18:14:56,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 18:14:56,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/1) ... [2021-03-25 18:14:56,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/1) ... [2021-03-25 18:14:56,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 18:14:56,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 18:14:56,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 18:14:56,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 18:14:56,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/1) ... [2021-03-25 18:14:56,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/1) ... [2021-03-25 18:14:56,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/1) ... [2021-03-25 18:14:56,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/1) ... [2021-03-25 18:14:56,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/1) ... [2021-03-25 18:14:56,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/1) ... [2021-03-25 18:14:56,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/1) ... [2021-03-25 18:14:56,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 18:14:56,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 18:14:56,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 18:14:56,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 18:14:56,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (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 18:14:56,333 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 18:14:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 18:14:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 18:14:56,335 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 18:14:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 18:14:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 18:14:56,336 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 18:14:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 18:14:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 18:14:56,337 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 18:14:56,542 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 18:14:56,542 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 18:14:56,544 INFO L202 PluginConnector]: Adding new model mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 06:14:56 BoogieIcfgContainer [2021-03-25 18:14:56,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 18:14:56,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 18:14:56,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 18:14:56,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 18:14:56,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 06:14:56" (1/2) ... [2021-03-25 18:14:56,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3015a2c0 and model type mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 06:14:56, skipping insertion in model container [2021-03-25 18:14:56,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 06:14:56" (2/2) ... [2021-03-25 18:14:56,566 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-comm.wvr.bpl [2021-03-25 18:14:56,570 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 18:14:56,574 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 18:14:56,574 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 18:14:56,611 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-25 18:14:56,626 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 18:14:56,644 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 18:14:56,644 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 18:14:56,644 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 18:14:56,644 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 18:14:56,644 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 18:14:56,644 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 18:14:56,644 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 18:14:56,644 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 18:14:56,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 54 flow [2021-03-25 18:14:56,668 INFO L129 PetriNetUnfolder]: 2/17 cut-off events. [2021-03-25 18:14:56,669 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 18:14:56,671 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 3. Compared 12 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 18:14:56,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 19 transitions, 54 flow [2021-03-25 18:14:56,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 15 transitions, 42 flow [2021-03-25 18:14:56,676 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:14:56,688 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 15 transitions, 42 flow [2021-03-25 18:14:56,690 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 15 transitions, 42 flow [2021-03-25 18:14:56,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 15 transitions, 42 flow [2021-03-25 18:14:56,697 INFO L129 PetriNetUnfolder]: 2/15 cut-off events. [2021-03-25 18:14:56,697 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 18:14:56,698 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 3. Compared 13 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 18:14:56,699 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-25 18:14:56,818 INFO L154 LiptonReduction]: Checked pairs total: 20 [2021-03-25 18:14:56,818 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 18:14:56,820 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 145 [2021-03-25 18:14:56,832 INFO L129 PetriNetUnfolder]: 2/9 cut-off events. [2021-03-25 18:14:56,832 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 18:14:56,832 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:14:56,833 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:14:56,833 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:14:56,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:14:56,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1133339149, now seen corresponding path program 1 times [2021-03-25 18:14:56,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:14:56,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794879559] [2021-03-25 18:14:56,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:14:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:56,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:56,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 18:14:56,946 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 18:14:56,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794879559] [2021-03-25 18:14:56,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 18:14:56,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 18:14:56,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28318201] [2021-03-25 18:14:56,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 18:14:56,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:14:56,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 18:14:56,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 18:14:56,969 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 24 [2021-03-25 18:14:56,971 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 10 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:14:56,971 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:14:56,971 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 24 [2021-03-25 18:14:56,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:14:56,989 INFO L129 PetriNetUnfolder]: 5/19 cut-off events. [2021-03-25 18:14:56,989 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 18:14:56,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 19 events. 5/19 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 20. Up to 8 conditions per place. [2021-03-25 18:14:56,990 INFO L132 encePairwiseOnDemand]: 20/24 looper letters, 3 selfloop transitions, 3 changer transitions 0/12 dead transitions. [2021-03-25 18:14:56,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 12 transitions, 48 flow [2021-03-25 18:14:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 18:14:56,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 18:14:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2021-03-25 18:14:57,000 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7638888888888888 [2021-03-25 18:14:57,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 55 transitions. [2021-03-25 18:14:57,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 55 transitions. [2021-03-25 18:14:57,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:14:57,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 55 transitions. [2021-03-25 18:14:57,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:14:57,008 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 18:14:57,008 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 18:14:57,010 INFO L185 Difference]: Start difference. First operand has 15 places, 10 transitions, 32 flow. Second operand 3 states and 55 transitions. [2021-03-25 18:14:57,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 12 transitions, 48 flow [2021-03-25 18:14:57,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 12 transitions, 40 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 18:14:57,014 INFO L241 Difference]: Finished difference. Result has 14 places, 12 transitions, 43 flow [2021-03-25 18:14:57,016 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 18:14:57,016 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, -1 predicate places. [2021-03-25 18:14:57,017 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:14:57,017 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 12 transitions, 43 flow [2021-03-25 18:14:57,017 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 12 transitions, 43 flow [2021-03-25 18:14:57,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 12 transitions, 43 flow [2021-03-25 18:14:57,022 INFO L129 PetriNetUnfolder]: 5/19 cut-off events. [2021-03-25 18:14:57,022 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 18:14:57,023 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. 0/18 useless extension candidates. Maximal degree in co-relation 18. Up to 8 conditions per place. [2021-03-25 18:14:57,023 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-25 18:14:57,024 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:14:57,024 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 18:14:57,024 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 18:14:57,025 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 12 transitions, 43 flow [2021-03-25 18:14:57,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:14:57,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:14:57,026 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:14:57,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 18:14:57,026 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:14:57,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:14:57,027 INFO L82 PathProgramCache]: Analyzing trace with hash -687885939, now seen corresponding path program 1 times [2021-03-25 18:14:57,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:14:57,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807189463] [2021-03-25 18:14:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:14:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:57,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,107 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-25 18:14:57,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 18:14:57,159 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:14:57,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:14:57,196 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 18:14:57,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807189463] [2021-03-25 18:14:57,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142659747] [2021-03-25 18:14:57,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 18:14:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:57,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:14:57,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:14:57,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,343 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-03-25 18:14:57,348 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-03-25 18:14:57,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,393 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:14:57,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:14:57,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:14:57,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:14:57,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:57,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:57,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:57,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:57,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:57,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:57,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:57,436 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 18:14:57,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:14:57,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:14:57,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116566731] [2021-03-25 18:14:57,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:14:57,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:14:57,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:14:57,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:14:57,441 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 24 [2021-03-25 18:14:57,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 12 transitions, 43 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:14:57,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:14:57,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 24 [2021-03-25 18:14:57,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:14:57,600 INFO L129 PetriNetUnfolder]: 9/28 cut-off events. [2021-03-25 18:14:57,601 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 18:14:57,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 28 events. 9/28 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 47. Up to 13 conditions per place. [2021-03-25 18:14:57,604 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 4 selfloop transitions, 5 changer transitions 4/18 dead transitions. [2021-03-25 18:14:57,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 18 transitions, 90 flow [2021-03-25 18:14:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 18:14:57,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 18:14:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-03-25 18:14:57,609 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.65 [2021-03-25 18:14:57,609 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-03-25 18:14:57,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-03-25 18:14:57,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:14:57,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-03-25 18:14:57,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:14:57,619 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 18:14:57,619 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 18:14:57,619 INFO L185 Difference]: Start difference. First operand has 14 places, 12 transitions, 43 flow. Second operand 5 states and 78 transitions. [2021-03-25 18:14:57,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 18 transitions, 90 flow [2021-03-25 18:14:57,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 18 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 18:14:57,623 INFO L241 Difference]: Finished difference. Result has 20 places, 14 transitions, 74 flow [2021-03-25 18:14:57,624 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=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=74, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2021-03-25 18:14:57,624 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 5 predicate places. [2021-03-25 18:14:57,624 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:14:57,624 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 14 transitions, 74 flow [2021-03-25 18:14:57,625 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 14 transitions, 74 flow [2021-03-25 18:14:57,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 74 flow [2021-03-25 18:14:57,634 INFO L129 PetriNetUnfolder]: 7/22 cut-off events. [2021-03-25 18:14:57,634 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-25 18:14:57,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 22 events. 7/22 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 51. Up to 11 conditions per place. [2021-03-25 18:14:57,634 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-25 18:14:57,635 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:14:57,635 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 18:14:57,636 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-25 18:14:57,636 INFO L480 AbstractCegarLoop]: Abstraction has has 19 places, 14 transitions, 74 flow [2021-03-25 18:14:57,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:14:57,637 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:14:57,637 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:14:57,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-03-25 18:14:57,850 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:14:57,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:14:57,851 INFO L82 PathProgramCache]: Analyzing trace with hash -803209783, now seen corresponding path program 1 times [2021-03-25 18:14:57,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:14:57,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447556182] [2021-03-25 18:14:57,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:14:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:57,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:57,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:57,895 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-25 18:14:57,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 18:14:57,928 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:14:57,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:14:57,949 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 18:14:57,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447556182] [2021-03-25 18:14:57,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513793279] [2021-03-25 18:14:57,950 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 18:14:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:57,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:14:57,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:14:57,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:58,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:14:58,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:14:58,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:14:58,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:14:58,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:14:58,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:14:58,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:14:58,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:14:58,041 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size [2021-03-25 18:14:58,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:14:58,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:14:58,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:14:58,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:58,068 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 18:14:58,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:14:58,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:14:58,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399554916] [2021-03-25 18:14:58,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:14:58,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:14:58,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:14:58,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:14:58,070 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 24 [2021-03-25 18:14:58,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:14:58,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:14:58,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 24 [2021-03-25 18:14:58,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:14:58,165 INFO L129 PetriNetUnfolder]: 15/36 cut-off events. [2021-03-25 18:14:58,165 INFO L130 PetriNetUnfolder]: For 35/36 co-relation queries the response was YES. [2021-03-25 18:14:58,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 36 events. 15/36 cut-off events. For 35/36 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 78 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 110. Up to 19 conditions per place. [2021-03-25 18:14:58,166 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 6 selfloop transitions, 5 changer transitions 4/20 dead transitions. [2021-03-25 18:14:58,167 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 133 flow [2021-03-25 18:14:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 18:14:58,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 18:14:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-03-25 18:14:58,168 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.65 [2021-03-25 18:14:58,168 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-03-25 18:14:58,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-03-25 18:14:58,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:14:58,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-03-25 18:14:58,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:14:58,170 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 18:14:58,170 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 18:14:58,170 INFO L185 Difference]: Start difference. First operand has 19 places, 14 transitions, 74 flow. Second operand 5 states and 78 transitions. [2021-03-25 18:14:58,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 133 flow [2021-03-25 18:14:58,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 116 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-25 18:14:58,172 INFO L241 Difference]: Finished difference. Result has 23 places, 16 transitions, 97 flow [2021-03-25 18:14:58,172 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=97, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2021-03-25 18:14:58,173 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 8 predicate places. [2021-03-25 18:14:58,173 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:14:58,173 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 16 transitions, 97 flow [2021-03-25 18:14:58,173 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 16 transitions, 97 flow [2021-03-25 18:14:58,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 16 transitions, 97 flow [2021-03-25 18:14:58,178 INFO L129 PetriNetUnfolder]: 12/28 cut-off events. [2021-03-25 18:14:58,178 INFO L130 PetriNetUnfolder]: For 28/31 co-relation queries the response was YES. [2021-03-25 18:14:58,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 28 events. 12/28 cut-off events. For 28/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 2/30 useless extension candidates. Maximal degree in co-relation 87. Up to 16 conditions per place. [2021-03-25 18:14:58,179 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-25 18:14:58,242 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:14:58,242 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:14:58,242 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 18:14:58,243 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 100 flow [2021-03-25 18:14:58,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:14:58,243 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:14:58,243 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:14:58,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:14:58,464 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:14:58,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:14:58,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1788899921, now seen corresponding path program 1 times [2021-03-25 18:14:58,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:14:58,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246373976] [2021-03-25 18:14:58,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:14:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:58,495 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 18:14:58,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:58,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 18:14:58,509 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-25 18:14:58,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:14:58,522 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:14:58,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:14:58,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:14:58,542 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 18:14:58,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246373976] [2021-03-25 18:14:58,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190176971] [2021-03-25 18:14:58,542 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) [2021-03-25 18:14:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:58,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 18:14:58,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:14:58,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:58,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:58,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:58,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:14:58,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:58,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:58,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:58,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:58,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:58,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,599 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size 32 [2021-03-25 18:14:58,599 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 18:14:58,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:14:58,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:14:58,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:14:58,617 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-03-25 18:14:58,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:14:58,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:14:58,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:14:58,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:14:58,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:14:58,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:14:58,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:14:58,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:14:58,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:14:58,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:14:58,646 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 18:14:58,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:14:58,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:14:58,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:14:58,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:14:58,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,657 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-03-25 18:14:58,659 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size [2021-03-25 18:14:58,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 18:14:58,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:58,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:58,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:58,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:58,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:58,695 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 18:14:58,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:14:58,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:14:58,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828888671] [2021-03-25 18:14:58,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:14:58,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:14:58,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:14:58,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:14:58,697 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 25 [2021-03-25 18:14:58,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 100 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:14:58,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:14:58,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 25 [2021-03-25 18:14:58,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:14:58,849 INFO L129 PetriNetUnfolder]: 18/50 cut-off events. [2021-03-25 18:14:58,850 INFO L130 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2021-03-25 18:14:58,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 50 events. 18/50 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 129 event pairs, 1 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 176. Up to 27 conditions per place. [2021-03-25 18:14:58,851 INFO L132 encePairwiseOnDemand]: 18/25 looper letters, 10 selfloop transitions, 10 changer transitions 1/25 dead transitions. [2021-03-25 18:14:58,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 25 transitions, 198 flow [2021-03-25 18:14:58,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 18:14:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 18:14:58,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2021-03-25 18:14:58,854 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.52 [2021-03-25 18:14:58,854 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 91 transitions. [2021-03-25 18:14:58,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 91 transitions. [2021-03-25 18:14:58,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:14:58,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 91 transitions. [2021-03-25 18:14:58,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 13.0) internal successors, (91), 7 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 18:14:58,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 25.0) internal successors, (200), 8 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 18:14:58,857 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 25.0) internal successors, (200), 8 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 18:14:58,858 INFO L185 Difference]: Start difference. First operand has 22 places, 16 transitions, 100 flow. Second operand 7 states and 91 transitions. [2021-03-25 18:14:58,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 25 transitions, 198 flow [2021-03-25 18:14:58,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 176 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-25 18:14:58,862 INFO L241 Difference]: Finished difference. Result has 28 places, 20 transitions, 148 flow [2021-03-25 18:14:58,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=148, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2021-03-25 18:14:58,862 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 13 predicate places. [2021-03-25 18:14:58,862 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:14:58,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 20 transitions, 148 flow [2021-03-25 18:14:58,863 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 20 transitions, 148 flow [2021-03-25 18:14:58,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 20 transitions, 148 flow [2021-03-25 18:14:58,874 INFO L129 PetriNetUnfolder]: 16/44 cut-off events. [2021-03-25 18:14:58,874 INFO L130 PetriNetUnfolder]: For 87/89 co-relation queries the response was YES. [2021-03-25 18:14:58,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 44 events. 16/44 cut-off events. For 87/89 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 104 event pairs, 0 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 152. Up to 23 conditions per place. [2021-03-25 18:14:58,875 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:14:58,928 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 18:14:58,928 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:14:58,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-25 18:14:58,929 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 149 flow [2021-03-25 18:14:58,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:14:58,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:14:58,929 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:14:59,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:14:59,154 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:14:59,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:14:59,154 INFO L82 PathProgramCache]: Analyzing trace with hash -660064028, now seen corresponding path program 1 times [2021-03-25 18:14:59,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:14:59,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34537242] [2021-03-25 18:14:59,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:14:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:59,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,197 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:14:59,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:14:59,239 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:14:59,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:14:59,265 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 18:14:59,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34537242] [2021-03-25 18:14:59,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371933472] [2021-03-25 18:14:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:14:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:59,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:14:59,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:14:59,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:59,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:59,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:59,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:59,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:59,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:59,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:59,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:59,335 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:14:59,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:14:59,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:14:59,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:14:59,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:59,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:14:59,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:14:59,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:59,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:59,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:59,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:59,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:59,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:59,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:59,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:14:59,365 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 18:14:59,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:14:59,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:14:59,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444693859] [2021-03-25 18:14:59,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:14:59,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:14:59,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:14:59,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:14:59,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 26 [2021-03-25 18:14:59,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:14:59,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:14:59,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 26 [2021-03-25 18:14:59,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:14:59,464 INFO L129 PetriNetUnfolder]: 19/53 cut-off events. [2021-03-25 18:14:59,464 INFO L130 PetriNetUnfolder]: For 128/132 co-relation queries the response was YES. [2021-03-25 18:14:59,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 53 events. 19/53 cut-off events. For 128/132 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 149 event pairs, 1 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 217. Up to 30 conditions per place. [2021-03-25 18:14:59,466 INFO L132 encePairwiseOnDemand]: 20/26 looper letters, 10 selfloop transitions, 7 changer transitions 2/24 dead transitions. [2021-03-25 18:14:59,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 225 flow [2021-03-25 18:14:59,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:14:59,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:14:59,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 93 transitions. [2021-03-25 18:14:59,468 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5961538461538461 [2021-03-25 18:14:59,468 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 93 transitions. [2021-03-25 18:14:59,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 93 transitions. [2021-03-25 18:14:59,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:14:59,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 93 transitions. [2021-03-25 18:14:59,469 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 18:14:59,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:14:59,470 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:14:59,470 INFO L185 Difference]: Start difference. First operand has 27 places, 20 transitions, 149 flow. Second operand 6 states and 93 transitions. [2021-03-25 18:14:59,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 225 flow [2021-03-25 18:14:59,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 199 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-03-25 18:14:59,475 INFO L241 Difference]: Finished difference. Result has 31 places, 22 transitions, 168 flow [2021-03-25 18:14:59,475 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2021-03-25 18:14:59,475 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 16 predicate places. [2021-03-25 18:14:59,475 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:14:59,475 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 22 transitions, 168 flow [2021-03-25 18:14:59,475 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 22 transitions, 168 flow [2021-03-25 18:14:59,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 22 transitions, 168 flow [2021-03-25 18:14:59,484 INFO L129 PetriNetUnfolder]: 18/48 cut-off events. [2021-03-25 18:14:59,484 INFO L130 PetriNetUnfolder]: For 93/95 co-relation queries the response was YES. [2021-03-25 18:14:59,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 48 events. 18/48 cut-off events. For 93/95 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 131 event pairs, 1 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 178. Up to 26 conditions per place. [2021-03-25 18:14:59,487 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:14:59,541 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:14:59,541 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:14:59,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-25 18:14:59,543 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 170 flow [2021-03-25 18:14:59,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:14:59,543 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:14:59,543 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:14:59,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:14:59,753 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:14:59,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:14:59,753 INFO L82 PathProgramCache]: Analyzing trace with hash 152218389, now seen corresponding path program 2 times [2021-03-25 18:14:59,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:14:59,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442550611] [2021-03-25 18:14:59,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:14:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:14:59,775 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 18:14:59,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 18:14:59,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 18:14:59,797 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:14:59,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:14:59,808 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:14:59,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:14:59,821 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 18:14:59,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442550611] [2021-03-25 18:14:59,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50869463] [2021-03-25 18:14:59,822 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 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 18:14:59,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 18:14:59,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 18:14:59,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 18:14:59,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:14:59,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:14:59,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,865 INFO L147 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size 23 [2021-03-25 18:14:59,865 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size [2021-03-25 18:14:59,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:14:59,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:14:59,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:14:59,885 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 18:14:59,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:14:59,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:14:59,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:14:59,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:14:59,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:14:59,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:14:59,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,912 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size 32 [2021-03-25 18:14:59,913 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:14:59,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:14:59,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:14:59,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:14:59,939 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 18:14:59,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:14:59,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:14:59,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:14:59,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:14:59,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,949 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-03-25 18:14:59,951 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size [2021-03-25 18:14:59,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 18:14:59,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:59,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:59,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:59,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:59,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:59,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:59,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:59,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:14:59,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:14:59,989 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 18:14:59,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:14:59,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:14:59,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933915457] [2021-03-25 18:14:59,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:14:59,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:14:59,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:14:59,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:14:59,991 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2021-03-25 18:14:59,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 170 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:14:59,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:14:59,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2021-03-25 18:14:59,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:00,108 INFO L129 PetriNetUnfolder]: 20/50 cut-off events. [2021-03-25 18:15:00,108 INFO L130 PetriNetUnfolder]: For 145/152 co-relation queries the response was YES. [2021-03-25 18:15:00,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 50 events. 20/50 cut-off events. For 145/152 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 130 event pairs, 1 based on Foata normal form. 8/58 useless extension candidates. Maximal degree in co-relation 231. Up to 36 conditions per place. [2021-03-25 18:15:00,111 INFO L132 encePairwiseOnDemand]: 18/27 looper letters, 10 selfloop transitions, 10 changer transitions 2/26 dead transitions. [2021-03-25 18:15:00,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 247 flow [2021-03-25 18:15:00,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 18:15:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 18:15:00,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2021-03-25 18:15:00,112 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656 [2021-03-25 18:15:00,112 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 88 transitions. [2021-03-25 18:15:00,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 88 transitions. [2021-03-25 18:15:00,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:00,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 88 transitions. [2021-03-25 18:15:00,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:00,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 27.0) internal successors, (216), 8 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:00,114 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 27.0) internal successors, (216), 8 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:00,114 INFO L185 Difference]: Start difference. First operand has 30 places, 22 transitions, 170 flow. Second operand 7 states and 88 transitions. [2021-03-25 18:15:00,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 26 transitions, 247 flow [2021-03-25 18:15:00,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 219 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:00,116 INFO L241 Difference]: Finished difference. Result has 35 places, 24 transitions, 192 flow [2021-03-25 18:15:00,116 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2021-03-25 18:15:00,117 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 20 predicate places. [2021-03-25 18:15:00,117 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:00,117 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 24 transitions, 192 flow [2021-03-25 18:15:00,117 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 24 transitions, 192 flow [2021-03-25 18:15:00,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 24 transitions, 192 flow [2021-03-25 18:15:00,122 INFO L129 PetriNetUnfolder]: 18/44 cut-off events. [2021-03-25 18:15:00,123 INFO L130 PetriNetUnfolder]: For 106/107 co-relation queries the response was YES. [2021-03-25 18:15:00,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 44 events. 18/44 cut-off events. For 106/107 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 86 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 174. Up to 23 conditions per place. [2021-03-25 18:15:00,123 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:15:00,152 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 18:15:00,152 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:00,152 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 18:15:00,152 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 197 flow [2021-03-25 18:15:00,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:00,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:00,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:00,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-03-25 18:15:00,375 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:00,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:00,375 INFO L82 PathProgramCache]: Analyzing trace with hash -601911996, now seen corresponding path program 1 times [2021-03-25 18:15:00,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:00,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157532858] [2021-03-25 18:15:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:00,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,404 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:00,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:00,433 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:00,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:00,451 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 18:15:00,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157532858] [2021-03-25 18:15:00,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414797069] [2021-03-25 18:15:00,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:15:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:00,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:00,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:00,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:00,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:00,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:00,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:00,506 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:00,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:00,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:00,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:00,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:00,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:00,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:00,529 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 18:15:00,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:00,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:00,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397515637] [2021-03-25 18:15:00,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:00,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:00,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:00,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:00,530 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2021-03-25 18:15:00,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 197 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:00,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:00,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2021-03-25 18:15:00,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:00,624 INFO L129 PetriNetUnfolder]: 21/53 cut-off events. [2021-03-25 18:15:00,624 INFO L130 PetriNetUnfolder]: For 185/190 co-relation queries the response was YES. [2021-03-25 18:15:00,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 53 events. 21/53 cut-off events. For 185/190 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 131 event pairs, 0 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 252. Up to 30 conditions per place. [2021-03-25 18:15:00,625 INFO L132 encePairwiseOnDemand]: 20/28 looper letters, 11 selfloop transitions, 10 changer transitions 2/28 dead transitions. [2021-03-25 18:15:00,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 291 flow [2021-03-25 18:15:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 95 transitions. [2021-03-25 18:15:00,626 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5654761904761905 [2021-03-25 18:15:00,626 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 95 transitions. [2021-03-25 18:15:00,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 95 transitions. [2021-03-25 18:15:00,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:00,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 95 transitions. [2021-03-25 18:15:00,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:00,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:00,627 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:00,627 INFO L185 Difference]: Start difference. First operand has 33 places, 24 transitions, 197 flow. Second operand 6 states and 95 transitions. [2021-03-25 18:15:00,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 291 flow [2021-03-25 18:15:00,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 247 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-25 18:15:00,629 INFO L241 Difference]: Finished difference. Result has 35 places, 26 transitions, 208 flow [2021-03-25 18:15:00,630 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=208, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2021-03-25 18:15:00,630 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 20 predicate places. [2021-03-25 18:15:00,630 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:00,630 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 26 transitions, 208 flow [2021-03-25 18:15:00,630 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 26 transitions, 208 flow [2021-03-25 18:15:00,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 208 flow [2021-03-25 18:15:00,634 INFO L129 PetriNetUnfolder]: 20/49 cut-off events. [2021-03-25 18:15:00,634 INFO L130 PetriNetUnfolder]: For 165/170 co-relation queries the response was YES. [2021-03-25 18:15:00,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 49 events. 20/49 cut-off events. For 165/170 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 116 event pairs, 0 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 202. Up to 28 conditions per place. [2021-03-25 18:15:00,635 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:15:00,681 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:00,681 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:00,681 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 18:15:00,682 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 210 flow [2021-03-25 18:15:00,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:00,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:00,682 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:00,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:00,883 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:00,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:00,883 INFO L82 PathProgramCache]: Analyzing trace with hash 288096477, now seen corresponding path program 1 times [2021-03-25 18:15:00,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:00,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276519735] [2021-03-25 18:15:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:00,916 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:00,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:00,931 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:15:00,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:00,941 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:00,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:00,948 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 18:15:00,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276519735] [2021-03-25 18:15:00,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620531522] [2021-03-25 18:15:00,949 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) [2021-03-25 18:15:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:00,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:00,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:00,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:00,984 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 18:15:00,985 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-03-25 18:15:00,986 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-03-25 18:15:00,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:00,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:00,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:00,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:00,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:00,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:01,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:01,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:01,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:01,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:01,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:01,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:01,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:01,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:01,032 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 18:15:01,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 18:15:01,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,063 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 18:15:01,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:01,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:01,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748009781] [2021-03-25 18:15:01,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:01,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:01,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:01,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:01,065 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2021-03-25 18:15:01,065 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 210 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:01,065 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:01,065 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2021-03-25 18:15:01,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:01,209 INFO L129 PetriNetUnfolder]: 22/60 cut-off events. [2021-03-25 18:15:01,209 INFO L130 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2021-03-25 18:15:01,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 60 events. 22/60 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 176 event pairs, 1 based on Foata normal form. 3/63 useless extension candidates. Maximal degree in co-relation 297. Up to 41 conditions per place. [2021-03-25 18:15:01,210 INFO L132 encePairwiseOnDemand]: 19/29 looper letters, 14 selfloop transitions, 11 changer transitions 3/32 dead transitions. [2021-03-25 18:15:01,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 332 flow [2021-03-25 18:15:01,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:01,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 123 transitions. [2021-03-25 18:15:01,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4241379310344828 [2021-03-25 18:15:01,211 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 123 transitions. [2021-03-25 18:15:01,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 123 transitions. [2021-03-25 18:15:01,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:01,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 123 transitions. [2021-03-25 18:15:01,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.3) internal successors, (123), 10 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 18:15:01,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:01,213 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:01,213 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 210 flow. Second operand 10 states and 123 transitions. [2021-03-25 18:15:01,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 332 flow [2021-03-25 18:15:01,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 294 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:01,215 INFO L241 Difference]: Finished difference. Result has 45 places, 29 transitions, 256 flow [2021-03-25 18:15:01,215 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=256, PETRI_PLACES=45, PETRI_TRANSITIONS=29} [2021-03-25 18:15:01,215 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 30 predicate places. [2021-03-25 18:15:01,215 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:01,215 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 29 transitions, 256 flow [2021-03-25 18:15:01,216 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 29 transitions, 256 flow [2021-03-25 18:15:01,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 29 transitions, 256 flow [2021-03-25 18:15:01,220 INFO L129 PetriNetUnfolder]: 20/51 cut-off events. [2021-03-25 18:15:01,220 INFO L130 PetriNetUnfolder]: For 224/229 co-relation queries the response was YES. [2021-03-25 18:15:01,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 51 events. 20/51 cut-off events. For 224/229 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 130 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 231. Up to 29 conditions per place. [2021-03-25 18:15:01,220 INFO L142 LiptonReduction]: Number of co-enabled transitions 26 [2021-03-25 18:15:01,377 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:01,377 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:01,377 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 162 [2021-03-25 18:15:01,378 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 216 flow [2021-03-25 18:15:01,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:01,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:01,379 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:01,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:01,596 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:01,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:01,596 INFO L82 PathProgramCache]: Analyzing trace with hash -544653694, now seen corresponding path program 1 times [2021-03-25 18:15:01,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:01,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399948180] [2021-03-25 18:15:01,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:01,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,624 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:01,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:01,654 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:01,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:01,671 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 18:15:01,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399948180] [2021-03-25 18:15:01,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121894762] [2021-03-25 18:15:01,671 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 18:15:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:01,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:01,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:01,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:01,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:01,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:01,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:01,727 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:01,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:01,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:01,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:01,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:01,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:01,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:01,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:01,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:01,751 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 18:15:01,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:01,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:01,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005793102] [2021-03-25 18:15:01,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:01,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:01,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:01,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:01,752 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2021-03-25 18:15:01,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 216 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:01,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:01,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2021-03-25 18:15:01,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:01,856 INFO L129 PetriNetUnfolder]: 23/57 cut-off events. [2021-03-25 18:15:01,856 INFO L130 PetriNetUnfolder]: For 345/351 co-relation queries the response was YES. [2021-03-25 18:15:01,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 57 events. 23/57 cut-off events. For 345/351 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 154 event pairs, 0 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 300. Up to 32 conditions per place. [2021-03-25 18:15:01,857 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 11 selfloop transitions, 12 changer transitions 2/30 dead transitions. [2021-03-25 18:15:01,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 326 flow [2021-03-25 18:15:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:01,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 97 transitions. [2021-03-25 18:15:01,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5052083333333334 [2021-03-25 18:15:01,858 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 97 transitions. [2021-03-25 18:15:01,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 97 transitions. [2021-03-25 18:15:01,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:01,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 97 transitions. [2021-03-25 18:15:01,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:01,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:01,859 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:01,859 INFO L185 Difference]: Start difference. First operand has 39 places, 26 transitions, 216 flow. Second operand 6 states and 97 transitions. [2021-03-25 18:15:01,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 326 flow [2021-03-25 18:15:01,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 278 flow, removed 16 selfloop flow, removed 9 redundant places. [2021-03-25 18:15:01,862 INFO L241 Difference]: Finished difference. Result has 37 places, 28 transitions, 235 flow [2021-03-25 18:15:01,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=235, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2021-03-25 18:15:01,862 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 22 predicate places. [2021-03-25 18:15:01,862 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:01,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 235 flow [2021-03-25 18:15:01,863 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 235 flow [2021-03-25 18:15:01,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 28 transitions, 235 flow [2021-03-25 18:15:01,867 INFO L129 PetriNetUnfolder]: 21/52 cut-off events. [2021-03-25 18:15:01,867 INFO L130 PetriNetUnfolder]: For 230/232 co-relation queries the response was YES. [2021-03-25 18:15:01,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 52 events. 21/52 cut-off events. For 230/232 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 128 event pairs, 1 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 230. Up to 31 conditions per place. [2021-03-25 18:15:01,868 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:15:01,913 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:01,913 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:01,913 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 18:15:01,914 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 237 flow [2021-03-25 18:15:01,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:01,914 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:01,914 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:02,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-03-25 18:15:02,116 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:02,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:02,116 INFO L82 PathProgramCache]: Analyzing trace with hash 293551113, now seen corresponding path program 1 times [2021-03-25 18:15:02,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:02,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106386901] [2021-03-25 18:15:02,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:02,134 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:02,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:02,149 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:15:02,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:02,162 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:02,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:02,169 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 18:15:02,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106386901] [2021-03-25 18:15:02,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044413070] [2021-03-25 18:15:02,170 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 18:15:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:02,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:02,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:02,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,204 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 18:15:02,206 INFO L147 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size 29 [2021-03-25 18:15:02,207 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-03-25 18:15:02,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:02,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:15:02,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:02,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:02,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:02,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:02,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:02,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:02,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:02,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,244 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.6 percent of original size 39 [2021-03-25 18:15:02,245 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.6 percent of original size [2021-03-25 18:15:02,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:02,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:02,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:02,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:02,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:02,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:02,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:02,272 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-03-25 18:15:02,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 18:15:02,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:02,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:02,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:02,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:02,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:02,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:02,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:02,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:02,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:02,298 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 18:15:02,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:02,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:02,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800467147] [2021-03-25 18:15:02,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:02,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:02,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:02,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:02,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2021-03-25 18:15:02,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 237 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:02,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:02,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2021-03-25 18:15:02,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:02,409 INFO L129 PetriNetUnfolder]: 24/62 cut-off events. [2021-03-25 18:15:02,410 INFO L130 PetriNetUnfolder]: For 268/268 co-relation queries the response was YES. [2021-03-25 18:15:02,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 62 events. 24/62 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 178 event pairs, 1 based on Foata normal form. 2/64 useless extension candidates. Maximal degree in co-relation 320. Up to 45 conditions per place. [2021-03-25 18:15:02,410 INFO L132 encePairwiseOnDemand]: 22/33 looper letters, 15 selfloop transitions, 11 changer transitions 2/32 dead transitions. [2021-03-25 18:15:02,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 341 flow [2021-03-25 18:15:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 101 transitions. [2021-03-25 18:15:02,412 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38257575757575757 [2021-03-25 18:15:02,412 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 101 transitions. [2021-03-25 18:15:02,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 101 transitions. [2021-03-25 18:15:02,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:02,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 101 transitions. [2021-03-25 18:15:02,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.625) internal successors, (101), 8 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 18:15:02,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:02,413 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:02,414 INFO L185 Difference]: Start difference. First operand has 36 places, 28 transitions, 237 flow. Second operand 8 states and 101 transitions. [2021-03-25 18:15:02,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 341 flow [2021-03-25 18:15:02,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 295 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:02,416 INFO L241 Difference]: Finished difference. Result has 43 places, 30 transitions, 259 flow [2021-03-25 18:15:02,417 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=259, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2021-03-25 18:15:02,417 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 28 predicate places. [2021-03-25 18:15:02,417 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:02,417 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 30 transitions, 259 flow [2021-03-25 18:15:02,418 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 30 transitions, 259 flow [2021-03-25 18:15:02,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 30 transitions, 259 flow [2021-03-25 18:15:02,422 INFO L129 PetriNetUnfolder]: 22/54 cut-off events. [2021-03-25 18:15:02,423 INFO L130 PetriNetUnfolder]: For 249/255 co-relation queries the response was YES. [2021-03-25 18:15:02,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 54 events. 22/54 cut-off events. For 249/255 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 144 event pairs, 0 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 244. Up to 31 conditions per place. [2021-03-25 18:15:02,423 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-25 18:15:02,515 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:02,515 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:02,515 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-03-25 18:15:02,516 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 233 flow [2021-03-25 18:15:02,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:02,516 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:02,516 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:02,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:02,724 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:02,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:02,724 INFO L82 PathProgramCache]: Analyzing trace with hash -431030820, now seen corresponding path program 1 times [2021-03-25 18:15:02,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:02,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075949017] [2021-03-25 18:15:02,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:02,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,756 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:02,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:02,785 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:02,803 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 18:15:02,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075949017] [2021-03-25 18:15:02,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102718524] [2021-03-25 18:15:02,804 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 18:15:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:02,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:02,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:02,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:02,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:02,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:02,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:02,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:02,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:02,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:02,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:02,868 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:02,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:02,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:02,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:02,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:02,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:02,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:02,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:02,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:02,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:02,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:02,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:02,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:02,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:02,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:02,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:02,888 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 18:15:02,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:02,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:02,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960435308] [2021-03-25 18:15:02,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:02,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:02,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:02,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:02,889 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2021-03-25 18:15:02,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 233 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:02,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:02,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2021-03-25 18:15:02,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:03,021 INFO L129 PetriNetUnfolder]: 25/61 cut-off events. [2021-03-25 18:15:03,021 INFO L130 PetriNetUnfolder]: For 386/393 co-relation queries the response was YES. [2021-03-25 18:15:03,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 61 events. 25/61 cut-off events. For 386/393 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 170 event pairs, 0 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 326. Up to 35 conditions per place. [2021-03-25 18:15:03,022 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 11 selfloop transitions, 14 changer transitions 2/32 dead transitions. [2021-03-25 18:15:03,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 32 transitions, 355 flow [2021-03-25 18:15:03,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:03,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:03,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2021-03-25 18:15:03,023 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2021-03-25 18:15:03,023 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 98 transitions. [2021-03-25 18:15:03,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 98 transitions. [2021-03-25 18:15:03,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:03,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 98 transitions. [2021-03-25 18:15:03,024 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 18:15:03,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 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 18:15:03,025 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 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 18:15:03,025 INFO L185 Difference]: Start difference. First operand has 39 places, 28 transitions, 233 flow. Second operand 6 states and 98 transitions. [2021-03-25 18:15:03,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 32 transitions, 355 flow [2021-03-25 18:15:03,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 309 flow, removed 14 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:03,027 INFO L241 Difference]: Finished difference. Result has 39 places, 30 transitions, 262 flow [2021-03-25 18:15:03,027 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2021-03-25 18:15:03,028 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 24 predicate places. [2021-03-25 18:15:03,028 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:03,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 262 flow [2021-03-25 18:15:03,028 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 262 flow [2021-03-25 18:15:03,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 262 flow [2021-03-25 18:15:03,032 INFO L129 PetriNetUnfolder]: 23/56 cut-off events. [2021-03-25 18:15:03,032 INFO L130 PetriNetUnfolder]: For 303/305 co-relation queries the response was YES. [2021-03-25 18:15:03,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 56 events. 23/56 cut-off events. For 303/305 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 143 event pairs, 1 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 259. Up to 34 conditions per place. [2021-03-25 18:15:03,033 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:15:03,081 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:03,081 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:03,081 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-03-25 18:15:03,082 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 264 flow [2021-03-25 18:15:03,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:03,082 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:03,082 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:03,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:03,305 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:03,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:03,305 INFO L82 PathProgramCache]: Analyzing trace with hash 296408166, now seen corresponding path program 1 times [2021-03-25 18:15:03,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:03,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230085543] [2021-03-25 18:15:03,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:03,327 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:03,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:03,343 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:15:03,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:03,352 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:03,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:03,365 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 18:15:03,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230085543] [2021-03-25 18:15:03,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371722959] [2021-03-25 18:15:03,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 18:15:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:03,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:03,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:03,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,393 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 18:15:03,395 INFO L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-03-25 18:15:03,399 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-25 18:15:03,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:03,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:03,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:03,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:03,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:03,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:03,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:03,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:03,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:03,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:03,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:03,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:03,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:03,443 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:03,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:03,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:03,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:03,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:03,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:03,471 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 18:15:03,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:03,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:03,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863419636] [2021-03-25 18:15:03,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:03,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:03,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:03,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:03,472 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 36 [2021-03-25 18:15:03,473 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 264 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:03,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:03,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 36 [2021-03-25 18:15:03,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:03,566 INFO L129 PetriNetUnfolder]: 26/66 cut-off events. [2021-03-25 18:15:03,566 INFO L130 PetriNetUnfolder]: For 337/337 co-relation queries the response was YES. [2021-03-25 18:15:03,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 66 events. 26/66 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 194 event pairs, 1 based on Foata normal form. 2/68 useless extension candidates. Maximal degree in co-relation 356. Up to 49 conditions per place. [2021-03-25 18:15:03,567 INFO L132 encePairwiseOnDemand]: 24/36 looper letters, 16 selfloop transitions, 12 changer transitions 2/34 dead transitions. [2021-03-25 18:15:03,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 34 transitions, 376 flow [2021-03-25 18:15:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:03,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 102 transitions. [2021-03-25 18:15:03,569 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3541666666666667 [2021-03-25 18:15:03,569 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 102 transitions. [2021-03-25 18:15:03,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 102 transitions. [2021-03-25 18:15:03,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:03,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 102 transitions. [2021-03-25 18:15:03,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.75) internal successors, (102), 8 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 18:15:03,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 36.0) internal successors, (324), 9 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:03,570 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 36.0) internal successors, (324), 9 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:03,570 INFO L185 Difference]: Start difference. First operand has 38 places, 30 transitions, 264 flow. Second operand 8 states and 102 transitions. [2021-03-25 18:15:03,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 34 transitions, 376 flow [2021-03-25 18:15:03,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 322 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:03,576 INFO L241 Difference]: Finished difference. Result has 45 places, 32 transitions, 284 flow [2021-03-25 18:15:03,576 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=284, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2021-03-25 18:15:03,576 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 30 predicate places. [2021-03-25 18:15:03,576 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:03,577 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 32 transitions, 284 flow [2021-03-25 18:15:03,577 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 32 transitions, 284 flow [2021-03-25 18:15:03,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 32 transitions, 284 flow [2021-03-25 18:15:03,583 INFO L129 PetriNetUnfolder]: 24/58 cut-off events. [2021-03-25 18:15:03,583 INFO L130 PetriNetUnfolder]: For 313/315 co-relation queries the response was YES. [2021-03-25 18:15:03,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 58 events. 24/58 cut-off events. For 313/315 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 155 event pairs, 0 based on Foata normal form. 1/59 useless extension candidates. Maximal degree in co-relation 272. Up to 34 conditions per place. [2021-03-25 18:15:03,584 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-25 18:15:03,689 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:03,690 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:03,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 114 [2021-03-25 18:15:03,691 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 256 flow [2021-03-25 18:15:03,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:03,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:03,691 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:03,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-03-25 18:15:03,915 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:03,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:03,915 INFO L82 PathProgramCache]: Analyzing trace with hash -345143367, now seen corresponding path program 1 times [2021-03-25 18:15:03,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:03,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643320695] [2021-03-25 18:15:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:03,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:03,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:03,943 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:03,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:03,972 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:03,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:03,993 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 18:15:03,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643320695] [2021-03-25 18:15:03,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069718780] [2021-03-25 18:15:03,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:04,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:04,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:04,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:04,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:04,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:04,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:04,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:04,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:04,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:04,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:04,050 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:04,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:04,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:04,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:04,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:04,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:04,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:04,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:04,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:04,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:04,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:04,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:04,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:04,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:04,070 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 18:15:04,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:04,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:04,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524686916] [2021-03-25 18:15:04,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:04,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:04,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:04,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:04,071 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2021-03-25 18:15:04,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 256 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:04,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:04,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2021-03-25 18:15:04,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:04,184 INFO L129 PetriNetUnfolder]: 27/65 cut-off events. [2021-03-25 18:15:04,184 INFO L130 PetriNetUnfolder]: For 514/530 co-relation queries the response was YES. [2021-03-25 18:15:04,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 65 events. 27/65 cut-off events. For 514/530 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 183 event pairs, 0 based on Foata normal form. 9/74 useless extension candidates. Maximal degree in co-relation 361. Up to 38 conditions per place. [2021-03-25 18:15:04,185 INFO L132 encePairwiseOnDemand]: 27/38 looper letters, 11 selfloop transitions, 16 changer transitions 2/34 dead transitions. [2021-03-25 18:15:04,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 390 flow [2021-03-25 18:15:04,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:04,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2021-03-25 18:15:04,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4342105263157895 [2021-03-25 18:15:04,186 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 99 transitions. [2021-03-25 18:15:04,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 99 transitions. [2021-03-25 18:15:04,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:04,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 99 transitions. [2021-03-25 18:15:04,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 16.5) internal successors, (99), 6 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 18:15:04,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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 18:15:04,188 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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 18:15:04,188 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 256 flow. Second operand 6 states and 99 transitions. [2021-03-25 18:15:04,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 390 flow [2021-03-25 18:15:04,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 340 flow, removed 15 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:04,190 INFO L241 Difference]: Finished difference. Result has 41 places, 32 transitions, 289 flow [2021-03-25 18:15:04,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=210, 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=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=289, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2021-03-25 18:15:04,191 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 26 predicate places. [2021-03-25 18:15:04,191 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:04,191 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 32 transitions, 289 flow [2021-03-25 18:15:04,191 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 32 transitions, 289 flow [2021-03-25 18:15:04,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 32 transitions, 289 flow [2021-03-25 18:15:04,195 INFO L129 PetriNetUnfolder]: 25/60 cut-off events. [2021-03-25 18:15:04,196 INFO L130 PetriNetUnfolder]: For 387/389 co-relation queries the response was YES. [2021-03-25 18:15:04,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 60 events. 25/60 cut-off events. For 387/389 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 160 event pairs, 1 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 288. Up to 37 conditions per place. [2021-03-25 18:15:04,196 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:15:04,247 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:04,247 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:04,247 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-25 18:15:04,248 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 291 flow [2021-03-25 18:15:04,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:04,248 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:04,248 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:04,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-25 18:15:04,456 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:04,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:04,456 INFO L82 PathProgramCache]: Analyzing trace with hash 299178729, now seen corresponding path program 1 times [2021-03-25 18:15:04,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:04,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920186587] [2021-03-25 18:15:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:04,491 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:04,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:04,507 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:15:04,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:04,517 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:04,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:04,525 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 18:15:04,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920186587] [2021-03-25 18:15:04,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841520161] [2021-03-25 18:15:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:15:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:04,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:04,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:04,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:04,552 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 18:15:04,553 INFO L147 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size 29 [2021-03-25 18:15:04,553 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-03-25 18:15:04,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:04,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:15:04,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:04,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:04,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:04,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:04,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:04,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:04,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:04,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,577 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size 39 [2021-03-25 18:15:04,578 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-03-25 18:15:04,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:04,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:04,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:04,601 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-03-25 18:15:04,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 18:15:04,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:04,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:04,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:04,636 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 18:15:04,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:04,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:04,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093119075] [2021-03-25 18:15:04,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:04,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:04,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:04,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:04,637 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2021-03-25 18:15:04,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 291 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:04,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:04,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2021-03-25 18:15:04,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:04,762 INFO L129 PetriNetUnfolder]: 28/70 cut-off events. [2021-03-25 18:15:04,762 INFO L130 PetriNetUnfolder]: For 415/415 co-relation queries the response was YES. [2021-03-25 18:15:04,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 70 events. 28/70 cut-off events. For 415/415 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 217 event pairs, 1 based on Foata normal form. 2/72 useless extension candidates. Maximal degree in co-relation 392. Up to 53 conditions per place. [2021-03-25 18:15:04,764 INFO L132 encePairwiseOnDemand]: 26/39 looper letters, 17 selfloop transitions, 13 changer transitions 2/36 dead transitions. [2021-03-25 18:15:04,764 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 36 transitions, 411 flow [2021-03-25 18:15:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:04,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 103 transitions. [2021-03-25 18:15:04,767 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3301282051282051 [2021-03-25 18:15:04,767 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 103 transitions. [2021-03-25 18:15:04,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 103 transitions. [2021-03-25 18:15:04,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:04,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 103 transitions. [2021-03-25 18:15:04,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.875) internal successors, (103), 8 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 18:15:04,768 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 18:15:04,769 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 18:15:04,769 INFO L185 Difference]: Start difference. First operand has 40 places, 32 transitions, 291 flow. Second operand 8 states and 103 transitions. [2021-03-25 18:15:04,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 36 transitions, 411 flow [2021-03-25 18:15:04,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 349 flow, removed 16 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:04,771 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 309 flow [2021-03-25 18:15:04,772 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=309, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-25 18:15:04,772 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 32 predicate places. [2021-03-25 18:15:04,772 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:04,772 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 309 flow [2021-03-25 18:15:04,772 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 309 flow [2021-03-25 18:15:04,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 34 transitions, 309 flow [2021-03-25 18:15:04,778 INFO L129 PetriNetUnfolder]: 26/62 cut-off events. [2021-03-25 18:15:04,778 INFO L130 PetriNetUnfolder]: For 381/389 co-relation queries the response was YES. [2021-03-25 18:15:04,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 62 events. 26/62 cut-off events. For 381/389 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 170 event pairs, 0 based on Foata normal form. 1/63 useless extension candidates. Maximal degree in co-relation 300. Up to 37 conditions per place. [2021-03-25 18:15:04,779 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-25 18:15:04,895 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:04,895 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:04,895 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123 [2021-03-25 18:15:04,897 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 279 flow [2021-03-25 18:15:04,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:04,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:04,897 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:05,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-03-25 18:15:05,108 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:05,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:05,108 INFO L82 PathProgramCache]: Analyzing trace with hash -259255914, now seen corresponding path program 1 times [2021-03-25 18:15:05,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:05,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023803269] [2021-03-25 18:15:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:05,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,152 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:05,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:05,182 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:05,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:05,201 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 18:15:05,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023803269] [2021-03-25 18:15:05,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11890205] [2021-03-25 18:15:05,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 18:15:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:05,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:05,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:05,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:05,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:05,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:05,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:05,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:05,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:05,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:05,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:05,279 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:05,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:05,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:05,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:05,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:05,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:05,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:05,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:05,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:05,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:05,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:05,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:05,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:05,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:05,299 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 18:15:05,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:05,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:05,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714282975] [2021-03-25 18:15:05,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:05,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:05,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:05,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:05,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2021-03-25 18:15:05,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 279 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:05,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:05,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2021-03-25 18:15:05,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:05,413 INFO L129 PetriNetUnfolder]: 29/69 cut-off events. [2021-03-25 18:15:05,413 INFO L130 PetriNetUnfolder]: For 624/642 co-relation queries the response was YES. [2021-03-25 18:15:05,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 69 events. 29/69 cut-off events. For 624/642 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 200 event pairs, 0 based on Foata normal form. 10/79 useless extension candidates. Maximal degree in co-relation 396. Up to 41 conditions per place. [2021-03-25 18:15:05,414 INFO L132 encePairwiseOnDemand]: 29/41 looper letters, 11 selfloop transitions, 18 changer transitions 2/36 dead transitions. [2021-03-25 18:15:05,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 425 flow [2021-03-25 18:15:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:05,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:05,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 100 transitions. [2021-03-25 18:15:05,416 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4065040650406504 [2021-03-25 18:15:05,416 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 100 transitions. [2021-03-25 18:15:05,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 100 transitions. [2021-03-25 18:15:05,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:05,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 100 transitions. [2021-03-25 18:15:05,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:05,417 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 18:15:05,417 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 18:15:05,417 INFO L185 Difference]: Start difference. First operand has 43 places, 32 transitions, 279 flow. Second operand 6 states and 100 transitions. [2021-03-25 18:15:05,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 425 flow [2021-03-25 18:15:05,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 36 transitions, 371 flow, removed 16 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:05,420 INFO L241 Difference]: Finished difference. Result has 43 places, 34 transitions, 316 flow [2021-03-25 18:15:05,420 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2021-03-25 18:15:05,420 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 28 predicate places. [2021-03-25 18:15:05,421 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:05,421 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 34 transitions, 316 flow [2021-03-25 18:15:05,421 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 34 transitions, 316 flow [2021-03-25 18:15:05,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 34 transitions, 316 flow [2021-03-25 18:15:05,427 INFO L129 PetriNetUnfolder]: 27/64 cut-off events. [2021-03-25 18:15:05,427 INFO L130 PetriNetUnfolder]: For 482/484 co-relation queries the response was YES. [2021-03-25 18:15:05,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 64 events. 27/64 cut-off events. For 482/484 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 185 event pairs, 1 based on Foata normal form. 1/65 useless extension candidates. Maximal degree in co-relation 317. Up to 40 conditions per place. [2021-03-25 18:15:05,428 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:15:05,479 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:05,479 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:05,479 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 18:15:05,479 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 318 flow [2021-03-25 18:15:05,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:05,480 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:05,480 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:05,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:05,684 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:05,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:05,684 INFO L82 PathProgramCache]: Analyzing trace with hash 301949292, now seen corresponding path program 1 times [2021-03-25 18:15:05,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:05,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566478525] [2021-03-25 18:15:05,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:05,695 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:05,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:05,710 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:15:05,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:05,724 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:05,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:05,734 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 18:15:05,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566478525] [2021-03-25 18:15:05,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237106124] [2021-03-25 18:15:05,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:05,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:05,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:05,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:05,776 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 18:15:05,777 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-03-25 18:15:05,777 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-03-25 18:15:05,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:05,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:05,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:05,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:05,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:05,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:05,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:05,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:05,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:05,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,796 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size 41 [2021-03-25 18:15:05,796 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 18:15:05,798 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.9 percent of original size 70 [2021-03-25 18:15:05,798 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.9 percent of original size [2021-03-25 18:15:05,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 18:15:05,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 18:15:05,818 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:15:05,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 18:15:05,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:05,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:05,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 18:15:05,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,836 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size 63 [2021-03-25 18:15:05,837 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size [2021-03-25 18:15:05,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:05,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:05,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:05,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:05,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:05,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:05,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:05,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:05,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:05,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:05,867 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 18:15:05,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:05,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:05,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41202463] [2021-03-25 18:15:05,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:05,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:05,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:05,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:05,868 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2021-03-25 18:15:05,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 318 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:05,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:05,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2021-03-25 18:15:05,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:06,061 INFO L129 PetriNetUnfolder]: 30/77 cut-off events. [2021-03-25 18:15:06,061 INFO L130 PetriNetUnfolder]: For 504/504 co-relation queries the response was YES. [2021-03-25 18:15:06,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 77 events. 30/77 cut-off events. For 504/504 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 251 event pairs, 1 based on Foata normal form. 3/80 useless extension candidates. Maximal degree in co-relation 446. Up to 57 conditions per place. [2021-03-25 18:15:06,062 INFO L132 encePairwiseOnDemand]: 28/42 looper letters, 18 selfloop transitions, 15 changer transitions 3/40 dead transitions. [2021-03-25 18:15:06,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 40 transitions, 480 flow [2021-03-25 18:15:06,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:06,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 127 transitions. [2021-03-25 18:15:06,063 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30238095238095236 [2021-03-25 18:15:06,063 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 127 transitions. [2021-03-25 18:15:06,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 127 transitions. [2021-03-25 18:15:06,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:06,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 127 transitions. [2021-03-25 18:15:06,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.7) internal successors, (127), 10 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 18:15:06,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 42.0) internal successors, (462), 11 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:06,065 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 42.0) internal successors, (462), 11 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:06,065 INFO L185 Difference]: Start difference. First operand has 42 places, 34 transitions, 318 flow. Second operand 10 states and 127 transitions. [2021-03-25 18:15:06,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 40 transitions, 480 flow [2021-03-25 18:15:06,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 410 flow, removed 18 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:06,069 INFO L241 Difference]: Finished difference. Result has 53 places, 37 transitions, 364 flow [2021-03-25 18:15:06,069 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=364, PETRI_PLACES=53, PETRI_TRANSITIONS=37} [2021-03-25 18:15:06,069 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 38 predicate places. [2021-03-25 18:15:06,069 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:06,069 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 37 transitions, 364 flow [2021-03-25 18:15:06,069 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 37 transitions, 364 flow [2021-03-25 18:15:06,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 37 transitions, 364 flow [2021-03-25 18:15:06,075 INFO L129 PetriNetUnfolder]: 28/67 cut-off events. [2021-03-25 18:15:06,075 INFO L130 PetriNetUnfolder]: For 516/518 co-relation queries the response was YES. [2021-03-25 18:15:06,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 67 events. 28/67 cut-off events. For 516/518 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 200 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 351. Up to 41 conditions per place. [2021-03-25 18:15:06,076 INFO L142 LiptonReduction]: Number of co-enabled transitions 26 [2021-03-25 18:15:06,184 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:06,185 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:06,185 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-25 18:15:06,185 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 35 transitions, 316 flow [2021-03-25 18:15:06,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:06,186 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:06,186 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:06,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-03-25 18:15:06,400 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:06,400 INFO L82 PathProgramCache]: Analyzing trace with hash -173368461, now seen corresponding path program 1 times [2021-03-25 18:15:06,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:06,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902566201] [2021-03-25 18:15:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:06,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,423 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:06,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:06,450 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:06,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:06,466 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 18:15:06,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902566201] [2021-03-25 18:15:06,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6192165] [2021-03-25 18:15:06,466 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 18:15:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:06,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:06,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:06,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:06,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:06,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:06,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:06,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:06,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:06,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:06,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:06,517 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:06,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:06,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:06,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:06,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:06,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:06,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:06,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:06,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:06,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:06,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:06,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:06,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:06,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:06,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:06,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:06,537 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 18:15:06,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:06,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:06,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932326755] [2021-03-25 18:15:06,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:06,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:06,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:06,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:06,538 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2021-03-25 18:15:06,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 316 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:06,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:06,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2021-03-25 18:15:06,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:06,666 INFO L129 PetriNetUnfolder]: 31/74 cut-off events. [2021-03-25 18:15:06,667 INFO L130 PetriNetUnfolder]: For 784/804 co-relation queries the response was YES. [2021-03-25 18:15:06,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 74 events. 31/74 cut-off events. For 784/804 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 221 event pairs, 0 based on Foata normal form. 11/85 useless extension candidates. Maximal degree in co-relation 449. Up to 45 conditions per place. [2021-03-25 18:15:06,667 INFO L132 encePairwiseOnDemand]: 31/44 looper letters, 12 selfloop transitions, 20 changer transitions 2/39 dead transitions. [2021-03-25 18:15:06,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 39 transitions, 476 flow [2021-03-25 18:15:06,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:06,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:06,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2021-03-25 18:15:06,669 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38636363636363635 [2021-03-25 18:15:06,669 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 102 transitions. [2021-03-25 18:15:06,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 102 transitions. [2021-03-25 18:15:06,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:06,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 102 transitions. [2021-03-25 18:15:06,669 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 18:15:06,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:06,670 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:06,670 INFO L185 Difference]: Start difference. First operand has 48 places, 35 transitions, 316 flow. Second operand 6 states and 102 transitions. [2021-03-25 18:15:06,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 39 transitions, 476 flow [2021-03-25 18:15:06,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 427 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:06,674 INFO L241 Difference]: Finished difference. Result has 48 places, 37 transitions, 364 flow [2021-03-25 18:15:06,674 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2021-03-25 18:15:06,674 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 33 predicate places. [2021-03-25 18:15:06,674 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:06,674 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 37 transitions, 364 flow [2021-03-25 18:15:06,674 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 37 transitions, 364 flow [2021-03-25 18:15:06,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 37 transitions, 364 flow [2021-03-25 18:15:06,679 INFO L129 PetriNetUnfolder]: 30/69 cut-off events. [2021-03-25 18:15:06,679 INFO L130 PetriNetUnfolder]: For 611/621 co-relation queries the response was YES. [2021-03-25 18:15:06,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 69 events. 30/69 cut-off events. For 611/621 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 205 event pairs, 1 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 371. Up to 42 conditions per place. [2021-03-25 18:15:06,680 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-25 18:15:06,782 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 18:15:06,783 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:06,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 109 [2021-03-25 18:15:06,783 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 363 flow [2021-03-25 18:15:06,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:06,783 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:06,783 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:07,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-03-25 18:15:07,004 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:07,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:07,004 INFO L82 PathProgramCache]: Analyzing trace with hash 131269832, now seen corresponding path program 1 times [2021-03-25 18:15:07,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:07,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190841243] [2021-03-25 18:15:07,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:07,032 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:07,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:07,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:07,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:15:07,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:07,065 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:07,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:07,073 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 18:15:07,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190841243] [2021-03-25 18:15:07,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814283334] [2021-03-25 18:15:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) [2021-03-25 18:15:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:07,103 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-25 18:15:07,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:07,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:07,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,112 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 18:15:07,115 INFO L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-03-25 18:15:07,116 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-25 18:15:07,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:07,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:07,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:07,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:07,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,136 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-03-25 18:15:07,137 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-03-25 18:15:07,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:07,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:07,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:07,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,153 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-03-25 18:15:07,153 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-03-25 18:15:07,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:07,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:07,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:07,169 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 18:15:07,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:07,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:07,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:07,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:07,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:07,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:07,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:07,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:07,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:07,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:07,190 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 18:15:07,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:07,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:07,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059951199] [2021-03-25 18:15:07,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:07,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:07,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:07,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:07,191 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 46 [2021-03-25 18:15:07,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 363 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:07,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:07,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 46 [2021-03-25 18:15:07,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:07,413 INFO L129 PetriNetUnfolder]: 32/78 cut-off events. [2021-03-25 18:15:07,413 INFO L130 PetriNetUnfolder]: For 649/649 co-relation queries the response was YES. [2021-03-25 18:15:07,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 78 events. 32/78 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 249 event pairs, 1 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 497. Up to 60 conditions per place. [2021-03-25 18:15:07,414 INFO L132 encePairwiseOnDemand]: 31/46 looper letters, 19 selfloop transitions, 11 changer transitions 6/40 dead transitions. [2021-03-25 18:15:07,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 40 transitions, 507 flow [2021-03-25 18:15:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:07,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:07,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 105 transitions. [2021-03-25 18:15:07,415 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28532608695652173 [2021-03-25 18:15:07,415 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 105 transitions. [2021-03-25 18:15:07,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 105 transitions. [2021-03-25 18:15:07,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:07,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 105 transitions. [2021-03-25 18:15:07,416 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 18:15:07,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 46.0) internal successors, (414), 9 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:07,417 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 46.0) internal successors, (414), 9 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:07,417 INFO L185 Difference]: Start difference. First operand has 46 places, 36 transitions, 363 flow. Second operand 8 states and 105 transitions. [2021-03-25 18:15:07,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 40 transitions, 507 flow [2021-03-25 18:15:07,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 403 flow, removed 27 selfloop flow, removed 6 redundant places. [2021-03-25 18:15:07,420 INFO L241 Difference]: Finished difference. Result has 51 places, 34 transitions, 286 flow [2021-03-25 18:15:07,420 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=286, PETRI_PLACES=51, PETRI_TRANSITIONS=34} [2021-03-25 18:15:07,420 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 36 predicate places. [2021-03-25 18:15:07,420 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:07,420 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 34 transitions, 286 flow [2021-03-25 18:15:07,421 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 34 transitions, 286 flow [2021-03-25 18:15:07,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 34 transitions, 286 flow [2021-03-25 18:15:07,425 INFO L129 PetriNetUnfolder]: 29/65 cut-off events. [2021-03-25 18:15:07,425 INFO L130 PetriNetUnfolder]: For 501/510 co-relation queries the response was YES. [2021-03-25 18:15:07,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 65 events. 29/65 cut-off events. For 501/510 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 187 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 317. Up to 40 conditions per place. [2021-03-25 18:15:07,426 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 18:15:07,428 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:07,428 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 18:15:07,428 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 18:15:07,429 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 286 flow [2021-03-25 18:15:07,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:07,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:07,429 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:07,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-03-25 18:15:07,644 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:07,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:07,644 INFO L82 PathProgramCache]: Analyzing trace with hash -87481008, now seen corresponding path program 1 times [2021-03-25 18:15:07,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:07,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841213888] [2021-03-25 18:15:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:07,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,674 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:07,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:07,702 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:07,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:07,719 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 18:15:07,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841213888] [2021-03-25 18:15:07,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902756229] [2021-03-25 18:15:07,719 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 18:15:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:07,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:07,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:07,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:07,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:07,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:07,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:07,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:07,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:07,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:07,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:07,770 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:07,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:07,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:07,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:07,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:07,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:07,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:07,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:07,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:07,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:07,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:07,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:07,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:07,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:07,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:07,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:07,786 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 18:15:07,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:07,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:07,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335485458] [2021-03-25 18:15:07,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:07,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:07,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:07,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:07,787 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 46 [2021-03-25 18:15:07,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:07,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:07,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 46 [2021-03-25 18:15:07,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:07,900 INFO L129 PetriNetUnfolder]: 32/73 cut-off events. [2021-03-25 18:15:07,901 INFO L130 PetriNetUnfolder]: For 799/811 co-relation queries the response was YES. [2021-03-25 18:15:07,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 73 events. 32/73 cut-off events. For 799/811 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 212 event pairs, 0 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 436. Up to 45 conditions per place. [2021-03-25 18:15:07,901 INFO L132 encePairwiseOnDemand]: 33/46 looper letters, 10 selfloop transitions, 21 changer transitions 2/38 dead transitions. [2021-03-25 18:15:07,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 452 flow [2021-03-25 18:15:07,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:07,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 100 transitions. [2021-03-25 18:15:07,902 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36231884057971014 [2021-03-25 18:15:07,902 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 100 transitions. [2021-03-25 18:15:07,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 100 transitions. [2021-03-25 18:15:07,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:07,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 100 transitions. [2021-03-25 18:15:07,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:07,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 46.0) internal successors, (322), 7 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:07,903 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 46.0) internal successors, (322), 7 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:07,904 INFO L185 Difference]: Start difference. First operand has 45 places, 34 transitions, 286 flow. Second operand 6 states and 100 transitions. [2021-03-25 18:15:07,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 452 flow [2021-03-25 18:15:07,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 416 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-25 18:15:07,907 INFO L241 Difference]: Finished difference. Result has 46 places, 36 transitions, 355 flow [2021-03-25 18:15:07,907 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=355, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2021-03-25 18:15:07,907 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 31 predicate places. [2021-03-25 18:15:07,907 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:07,907 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 355 flow [2021-03-25 18:15:07,907 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 355 flow [2021-03-25 18:15:07,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 36 transitions, 355 flow [2021-03-25 18:15:07,912 INFO L129 PetriNetUnfolder]: 31/71 cut-off events. [2021-03-25 18:15:07,913 INFO L130 PetriNetUnfolder]: For 713/713 co-relation queries the response was YES. [2021-03-25 18:15:07,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 71 events. 31/71 cut-off events. For 713/713 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 208 event pairs, 1 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 376. Up to 44 conditions per place. [2021-03-25 18:15:07,913 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 18:15:07,959 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:07,959 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:07,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-25 18:15:07,960 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 357 flow [2021-03-25 18:15:07,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:07,960 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:07,960 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:08,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:08,164 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:08,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:08,164 INFO L82 PathProgramCache]: Analyzing trace with hash -535781717, now seen corresponding path program 2 times [2021-03-25 18:15:08,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:08,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201933222] [2021-03-25 18:15:08,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:08,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:15:08,206 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:08,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:08,235 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:08,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:08,251 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 18:15:08,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201933222] [2021-03-25 18:15:08,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306472326] [2021-03-25 18:15:08,251 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 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 18:15:08,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 18:15:08,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 18:15:08,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 18:15:08,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:08,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,286 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-03-25 18:15:08,286 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-03-25 18:15:08,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,297 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-03-25 18:15:08,297 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size [2021-03-25 18:15:08,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,313 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 18:15:08,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:08,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:08,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:08,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 18:15:08,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 18:15:08,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 18:15:08,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,333 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 18:15:08,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:08,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:08,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786637923] [2021-03-25 18:15:08,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:08,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:08,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:08,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:08,334 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 47 [2021-03-25 18:15:08,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 357 flow. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:08,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:08,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 47 [2021-03-25 18:15:08,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:08,536 INFO L129 PetriNetUnfolder]: 34/77 cut-off events. [2021-03-25 18:15:08,537 INFO L130 PetriNetUnfolder]: For 660/676 co-relation queries the response was YES. [2021-03-25 18:15:08,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 77 events. 34/77 cut-off events. For 660/676 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 230 event pairs, 0 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 495. Up to 58 conditions per place. [2021-03-25 18:15:08,539 INFO L132 encePairwiseOnDemand]: 32/47 looper letters, 15 selfloop transitions, 17 changer transitions 2/40 dead transitions. [2021-03-25 18:15:08,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 40 transitions, 511 flow [2021-03-25 18:15:08,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2021-03-25 18:15:08,542 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3617021276595745 [2021-03-25 18:15:08,542 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 102 transitions. [2021-03-25 18:15:08,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 102 transitions. [2021-03-25 18:15:08,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:08,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 102 transitions. [2021-03-25 18:15:08,545 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 18:15:08,545 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 18:15:08,547 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 18:15:08,547 INFO L185 Difference]: Start difference. First operand has 45 places, 36 transitions, 357 flow. Second operand 6 states and 102 transitions. [2021-03-25 18:15:08,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 40 transitions, 511 flow [2021-03-25 18:15:08,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 40 transitions, 427 flow, removed 22 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:08,552 INFO L241 Difference]: Finished difference. Result has 48 places, 38 transitions, 370 flow [2021-03-25 18:15:08,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=370, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2021-03-25 18:15:08,553 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 33 predicate places. [2021-03-25 18:15:08,553 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:08,553 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 38 transitions, 370 flow [2021-03-25 18:15:08,553 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 38 transitions, 370 flow [2021-03-25 18:15:08,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 370 flow [2021-03-25 18:15:08,559 INFO L129 PetriNetUnfolder]: 33/74 cut-off events. [2021-03-25 18:15:08,559 INFO L130 PetriNetUnfolder]: For 567/581 co-relation queries the response was YES. [2021-03-25 18:15:08,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 74 events. 33/74 cut-off events. For 567/581 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 214 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 396. Up to 46 conditions per place. [2021-03-25 18:15:08,560 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:15:08,607 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 18:15:08,607 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:08,607 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 18:15:08,608 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 377 flow [2021-03-25 18:15:08,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:08,608 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:08,608 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:08,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:08,825 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:08,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:08,825 INFO L82 PathProgramCache]: Analyzing trace with hash -30222706, now seen corresponding path program 1 times [2021-03-25 18:15:08,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:08,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576706952] [2021-03-25 18:15:08,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:08,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,855 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:08,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:08,881 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:08,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,894 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 18:15:08,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576706952] [2021-03-25 18:15:08,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886330352] [2021-03-25 18:15:08,895 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 18:15:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:08,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:08,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:08,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:08,960 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:08,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:08,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:08,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:08,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:08,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:08,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:08,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:08,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:08,973 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 18:15:08,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:08,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:08,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530451239] [2021-03-25 18:15:08,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:08,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:08,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:08,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:08,974 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 48 [2021-03-25 18:15:08,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 377 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:08,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:08,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 48 [2021-03-25 18:15:08,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:09,086 INFO L129 PetriNetUnfolder]: 36/82 cut-off events. [2021-03-25 18:15:09,086 INFO L130 PetriNetUnfolder]: For 692/710 co-relation queries the response was YES. [2021-03-25 18:15:09,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 82 events. 36/82 cut-off events. For 692/710 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 271 event pairs, 1 based on Foata normal form. 1/83 useless extension candidates. Maximal degree in co-relation 532. Up to 51 conditions per place. [2021-03-25 18:15:09,087 INFO L132 encePairwiseOnDemand]: 33/48 looper letters, 11 selfloop transitions, 24 changer transitions 2/42 dead transitions. [2021-03-25 18:15:09,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 42 transitions, 561 flow [2021-03-25 18:15:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:09,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2021-03-25 18:15:09,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3541666666666667 [2021-03-25 18:15:09,088 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 102 transitions. [2021-03-25 18:15:09,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 102 transitions. [2021-03-25 18:15:09,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:09,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 102 transitions. [2021-03-25 18:15:09,089 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 18:15:09,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:09,089 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:09,089 INFO L185 Difference]: Start difference. First operand has 47 places, 38 transitions, 377 flow. Second operand 6 states and 102 transitions. [2021-03-25 18:15:09,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 42 transitions, 561 flow [2021-03-25 18:15:09,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 514 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:09,093 INFO L241 Difference]: Finished difference. Result has 50 places, 40 transitions, 445 flow [2021-03-25 18:15:09,093 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=445, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2021-03-25 18:15:09,093 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 35 predicate places. [2021-03-25 18:15:09,093 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:09,093 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 40 transitions, 445 flow [2021-03-25 18:15:09,094 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 40 transitions, 445 flow [2021-03-25 18:15:09,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 40 transitions, 445 flow [2021-03-25 18:15:09,099 INFO L129 PetriNetUnfolder]: 35/78 cut-off events. [2021-03-25 18:15:09,099 INFO L130 PetriNetUnfolder]: For 833/837 co-relation queries the response was YES. [2021-03-25 18:15:09,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 78 events. 35/78 cut-off events. For 833/837 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 243 event pairs, 1 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 467. Up to 46 conditions per place. [2021-03-25 18:15:09,100 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 18:15:09,148 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:09,148 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:09,148 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-25 18:15:09,148 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 447 flow [2021-03-25 18:15:09,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:09,148 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:09,149 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:09,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-03-25 18:15:09,368 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:09,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:09,368 INFO L82 PathProgramCache]: Analyzing trace with hash 666761491, now seen corresponding path program 1 times [2021-03-25 18:15:09,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:09,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864093878] [2021-03-25 18:15:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:09,379 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:09,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:09,392 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-03-25 18:15:09,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:09,402 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:09,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:09,412 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:09,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:09,419 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 18:15:09,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864093878] [2021-03-25 18:15:09,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527448581] [2021-03-25 18:15:09,419 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) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:09,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:09,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:09,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,447 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-03-25 18:15:09,447 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-03-25 18:15:09,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:09,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:09,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:09,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:09,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:09,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:09,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:09,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:09,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:09,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:09,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:09,475 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-25 18:15:09,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:09,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:09,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:09,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:09,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:09,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:09,492 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-03-25 18:15:09,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:09,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:09,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:09,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:09,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:09,514 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 18:15:09,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:09,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:09,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103863232] [2021-03-25 18:15:09,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:09,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:09,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:09,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:09,515 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2021-03-25 18:15:09,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 447 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:09,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:09,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2021-03-25 18:15:09,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:09,664 INFO L129 PetriNetUnfolder]: 40/99 cut-off events. [2021-03-25 18:15:09,664 INFO L130 PetriNetUnfolder]: For 1006/1006 co-relation queries the response was YES. [2021-03-25 18:15:09,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 99 events. 40/99 cut-off events. For 1006/1006 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 347 event pairs, 1 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 697. Up to 73 conditions per place. [2021-03-25 18:15:09,666 INFO L132 encePairwiseOnDemand]: 32/49 looper letters, 24 selfloop transitions, 20 changer transitions 1/49 dead transitions. [2021-03-25 18:15:09,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 711 flow [2021-03-25 18:15:09,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 18:15:09,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 18:15:09,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 102 transitions. [2021-03-25 18:15:09,667 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29737609329446063 [2021-03-25 18:15:09,667 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 102 transitions. [2021-03-25 18:15:09,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 102 transitions. [2021-03-25 18:15:09,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:09,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 102 transitions. [2021-03-25 18:15:09,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 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 18:15:09,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 49.0) internal successors, (392), 8 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:09,668 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 49.0) internal successors, (392), 8 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:09,668 INFO L185 Difference]: Start difference. First operand has 49 places, 40 transitions, 447 flow. Second operand 7 states and 102 transitions. [2021-03-25 18:15:09,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 711 flow [2021-03-25 18:15:09,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 49 transitions, 611 flow, removed 27 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:09,674 INFO L241 Difference]: Finished difference. Result has 54 places, 44 transitions, 525 flow [2021-03-25 18:15:09,674 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=525, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2021-03-25 18:15:09,674 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 39 predicate places. [2021-03-25 18:15:09,674 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:09,674 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 44 transitions, 525 flow [2021-03-25 18:15:09,675 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 44 transitions, 525 flow [2021-03-25 18:15:09,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 44 transitions, 525 flow [2021-03-25 18:15:09,681 INFO L129 PetriNetUnfolder]: 38/93 cut-off events. [2021-03-25 18:15:09,681 INFO L130 PetriNetUnfolder]: For 972/974 co-relation queries the response was YES. [2021-03-25 18:15:09,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 93 events. 38/93 cut-off events. For 972/974 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 321 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 573. Up to 52 conditions per place. [2021-03-25 18:15:09,683 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-25 18:15:09,730 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 18:15:09,731 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:09,731 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 18:15:09,731 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 44 transitions, 526 flow [2021-03-25 18:15:09,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:09,731 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:09,731 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:09,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-03-25 18:15:09,948 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:09,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:09,948 INFO L82 PathProgramCache]: Analyzing trace with hash 27035596, now seen corresponding path program 1 times [2021-03-25 18:15:09,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:09,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530681256] [2021-03-25 18:15:09,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:09,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:09,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:09,968 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:09,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:09,992 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:09,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,003 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 18:15:10,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530681256] [2021-03-25 18:15:10,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057117301] [2021-03-25 18:15:10,003 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 18:15:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:10,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:10,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:10,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,053 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:10,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:10,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:10,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:10,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:10,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:10,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:10,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:10,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:10,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:10,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:10,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:10,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:10,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:10,066 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 18:15:10,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:10,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:10,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531497743] [2021-03-25 18:15:10,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:10,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:10,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:10,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:10,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 50 [2021-03-25 18:15:10,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 44 transitions, 526 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:10,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:10,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 50 [2021-03-25 18:15:10,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:10,167 INFO L129 PetriNetUnfolder]: 41/101 cut-off events. [2021-03-25 18:15:10,167 INFO L130 PetriNetUnfolder]: For 1574/1595 co-relation queries the response was YES. [2021-03-25 18:15:10,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 101 events. 41/101 cut-off events. For 1574/1595 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 368 event pairs, 0 based on Foata normal form. 1/102 useless extension candidates. Maximal degree in co-relation 726. Up to 57 conditions per place. [2021-03-25 18:15:10,169 INFO L132 encePairwiseOnDemand]: 34/50 looper letters, 15 selfloop transitions, 26 changer transitions 2/48 dead transitions. [2021-03-25 18:15:10,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 48 transitions, 738 flow [2021-03-25 18:15:10,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:10,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:10,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 104 transitions. [2021-03-25 18:15:10,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3466666666666667 [2021-03-25 18:15:10,180 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 104 transitions. [2021-03-25 18:15:10,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 104 transitions. [2021-03-25 18:15:10,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:10,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 104 transitions. [2021-03-25 18:15:10,182 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 18:15:10,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:10,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:10,182 INFO L185 Difference]: Start difference. First operand has 53 places, 44 transitions, 526 flow. Second operand 6 states and 104 transitions. [2021-03-25 18:15:10,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 48 transitions, 738 flow [2021-03-25 18:15:10,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 48 transitions, 634 flow, removed 43 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:10,189 INFO L241 Difference]: Finished difference. Result has 57 places, 46 transitions, 549 flow [2021-03-25 18:15:10,189 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=549, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2021-03-25 18:15:10,190 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 42 predicate places. [2021-03-25 18:15:10,190 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:10,190 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 46 transitions, 549 flow [2021-03-25 18:15:10,190 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 46 transitions, 549 flow [2021-03-25 18:15:10,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 46 transitions, 549 flow [2021-03-25 18:15:10,197 INFO L129 PetriNetUnfolder]: 40/97 cut-off events. [2021-03-25 18:15:10,197 INFO L130 PetriNetUnfolder]: For 890/909 co-relation queries the response was YES. [2021-03-25 18:15:10,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 97 events. 40/97 cut-off events. For 890/909 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 357 event pairs, 1 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 605. Up to 53 conditions per place. [2021-03-25 18:15:10,198 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-25 18:15:10,255 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:10,255 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:10,255 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-25 18:15:10,256 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 550 flow [2021-03-25 18:15:10,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:10,256 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:10,256 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:10,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:10,472 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:10,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:10,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1788092681, now seen corresponding path program 3 times [2021-03-25 18:15:10,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:10,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623940799] [2021-03-25 18:15:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:10,485 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 18:15:10,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:10,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 18:15:10,498 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-25 18:15:10,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:10,511 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-25 18:15:10,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:10,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:10,533 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 18:15:10,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623940799] [2021-03-25 18:15:10,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40550448] [2021-03-25 18:15:10,533 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 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 18:15:10,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-25 18:15:10,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 18:15:10,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 18:15:10,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:10,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:10,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:10,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:10,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:10,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:10,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:10,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:10,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:10,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:10,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,578 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size 32 [2021-03-25 18:15:10,579 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 18:15:10,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:10,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:10,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:10,598 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-03-25 18:15:10,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:10,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:10,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 18:15:10,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:10,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:10,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:10,627 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 18:15:10,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:10,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:10,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:10,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:10,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,634 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-03-25 18:15:10,636 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size [2021-03-25 18:15:10,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 18:15:10,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:10,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:10,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:10,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:10,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:10,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:10,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:10,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:10,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:10,664 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 18:15:10,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:10,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:10,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845191073] [2021-03-25 18:15:10,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:10,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:10,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:10,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:10,666 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2021-03-25 18:15:10,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 550 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:10,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:10,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2021-03-25 18:15:10,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:10,851 INFO L129 PetriNetUnfolder]: 42/99 cut-off events. [2021-03-25 18:15:10,851 INFO L130 PetriNetUnfolder]: For 1117/1117 co-relation queries the response was YES. [2021-03-25 18:15:10,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 99 events. 42/99 cut-off events. For 1117/1117 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 342 event pairs, 1 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 718. Up to 81 conditions per place. [2021-03-25 18:15:10,852 INFO L132 encePairwiseOnDemand]: 32/51 looper letters, 23 selfloop transitions, 21 changer transitions 1/49 dead transitions. [2021-03-25 18:15:10,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 49 transitions, 663 flow [2021-03-25 18:15:10,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 18:15:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 18:15:10,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 100 transitions. [2021-03-25 18:15:10,854 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2801120448179272 [2021-03-25 18:15:10,854 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 100 transitions. [2021-03-25 18:15:10,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 100 transitions. [2021-03-25 18:15:10,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:10,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 100 transitions. [2021-03-25 18:15:10,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:10,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 51.0) internal successors, (408), 8 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:10,855 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 51.0) internal successors, (408), 8 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:10,855 INFO L185 Difference]: Start difference. First operand has 56 places, 46 transitions, 550 flow. Second operand 7 states and 100 transitions. [2021-03-25 18:15:10,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 49 transitions, 663 flow [2021-03-25 18:15:10,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 49 transitions, 557 flow, removed 28 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:10,860 INFO L241 Difference]: Finished difference. Result has 61 places, 48 transitions, 515 flow [2021-03-25 18:15:10,860 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=515, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2021-03-25 18:15:10,860 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 46 predicate places. [2021-03-25 18:15:10,860 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:10,861 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 48 transitions, 515 flow [2021-03-25 18:15:10,861 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 48 transitions, 515 flow [2021-03-25 18:15:10,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 515 flow [2021-03-25 18:15:10,867 INFO L129 PetriNetUnfolder]: 40/93 cut-off events. [2021-03-25 18:15:10,868 INFO L130 PetriNetUnfolder]: For 1007/1012 co-relation queries the response was YES. [2021-03-25 18:15:10,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 93 events. 40/93 cut-off events. For 1007/1012 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 301 event pairs, 0 based on Foata normal form. 2/95 useless extension candidates. Maximal degree in co-relation 566. Up to 52 conditions per place. [2021-03-25 18:15:10,869 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-25 18:15:10,905 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:10,905 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:10,906 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-03-25 18:15:10,906 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 519 flow [2021-03-25 18:15:10,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:10,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:10,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:11,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-03-25 18:15:11,128 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:11,128 INFO L82 PathProgramCache]: Analyzing trace with hash 85101138, now seen corresponding path program 1 times [2021-03-25 18:15:11,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:11,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355047011] [2021-03-25 18:15:11,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:11,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,148 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:11,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:11,173 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:11,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,188 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 18:15:11,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355047011] [2021-03-25 18:15:11,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494076808] [2021-03-25 18:15:11,188 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 18:15:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:11,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:11,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:11,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:11,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:11,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:11,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:11,232 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:11,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:11,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:11,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:11,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:11,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:11,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:11,248 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 18:15:11,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:11,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:11,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570673047] [2021-03-25 18:15:11,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:11,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:11,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:11,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:11,249 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52 [2021-03-25 18:15:11,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 519 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:11,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:11,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52 [2021-03-25 18:15:11,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:11,386 INFO L129 PetriNetUnfolder]: 43/101 cut-off events. [2021-03-25 18:15:11,387 INFO L130 PetriNetUnfolder]: For 1534/1557 co-relation queries the response was YES. [2021-03-25 18:15:11,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 101 events. 43/101 cut-off events. For 1534/1557 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 366 event pairs, 0 based on Foata normal form. 1/102 useless extension candidates. Maximal degree in co-relation 730. Up to 58 conditions per place. [2021-03-25 18:15:11,388 INFO L132 encePairwiseOnDemand]: 35/52 looper letters, 17 selfloop transitions, 28 changer transitions 2/52 dead transitions. [2021-03-25 18:15:11,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 747 flow [2021-03-25 18:15:11,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:11,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 106 transitions. [2021-03-25 18:15:11,389 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33974358974358976 [2021-03-25 18:15:11,389 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 106 transitions. [2021-03-25 18:15:11,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 106 transitions. [2021-03-25 18:15:11,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:11,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 106 transitions. [2021-03-25 18:15:11,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:11,390 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 18:15:11,390 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 18:15:11,390 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 519 flow. Second operand 6 states and 106 transitions. [2021-03-25 18:15:11,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 747 flow [2021-03-25 18:15:11,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 52 transitions, 688 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-25 18:15:11,395 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 595 flow [2021-03-25 18:15:11,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=595, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-03-25 18:15:11,396 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 47 predicate places. [2021-03-25 18:15:11,396 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:11,396 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 595 flow [2021-03-25 18:15:11,396 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 595 flow [2021-03-25 18:15:11,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 595 flow [2021-03-25 18:15:11,403 INFO L129 PetriNetUnfolder]: 42/97 cut-off events. [2021-03-25 18:15:11,403 INFO L130 PetriNetUnfolder]: For 1346/1366 co-relation queries the response was YES. [2021-03-25 18:15:11,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 97 events. 42/97 cut-off events. For 1346/1366 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 360 event pairs, 1 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 635. Up to 54 conditions per place. [2021-03-25 18:15:11,404 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-25 18:15:11,457 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:11,457 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:11,457 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-03-25 18:15:11,458 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 596 flow [2021-03-25 18:15:11,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:11,458 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:11,458 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:11,675 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:11,676 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:11,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:11,676 INFO L82 PathProgramCache]: Analyzing trace with hash 267688305, now seen corresponding path program 1 times [2021-03-25 18:15:11,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:11,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956325157] [2021-03-25 18:15:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:11,697 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:11,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:11,711 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-03-25 18:15:11,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:11,723 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-03-25 18:15:11,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:11,733 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:11,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:11,742 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 18:15:11,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956325157] [2021-03-25 18:15:11,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843466122] [2021-03-25 18:15:11,742 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) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:11,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:11,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:11,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:11,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,777 INFO L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-03-25 18:15:11,778 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-03-25 18:15:11,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:11,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:11,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:15:11,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:11,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:11,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:11,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:11,809 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 18:15:11,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:11,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:11,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:11,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:11,826 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-03-25 18:15:11,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:11,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:11,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:11,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:11,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:11,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:11,853 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 18:15:11,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:11,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:11,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144271029] [2021-03-25 18:15:11,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:11,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:11,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:11,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:11,854 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 53 [2021-03-25 18:15:11,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 596 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:11,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:11,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 53 [2021-03-25 18:15:11,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:12,119 INFO L129 PetriNetUnfolder]: 47/117 cut-off events. [2021-03-25 18:15:12,119 INFO L130 PetriNetUnfolder]: For 1894/1894 co-relation queries the response was YES. [2021-03-25 18:15:12,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 117 events. 47/117 cut-off events. For 1894/1894 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 450 event pairs, 1 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 909. Up to 88 conditions per place. [2021-03-25 18:15:12,120 INFO L132 encePairwiseOnDemand]: 32/53 looper letters, 26 selfloop transitions, 31 changer transitions 1/62 dead transitions. [2021-03-25 18:15:12,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 62 transitions, 1004 flow [2021-03-25 18:15:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 18:15:12,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 18:15:12,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 151 transitions. [2021-03-25 18:15:12,121 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25900514579759865 [2021-03-25 18:15:12,121 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 151 transitions. [2021-03-25 18:15:12,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 151 transitions. [2021-03-25 18:15:12,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:12,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 151 transitions. [2021-03-25 18:15:12,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 13.727272727272727) internal successors, (151), 11 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 18:15:12,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 53.0) internal successors, (636), 12 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:12,123 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 53.0) internal successors, (636), 12 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:12,123 INFO L185 Difference]: Start difference. First operand has 61 places, 50 transitions, 596 flow. Second operand 11 states and 151 transitions. [2021-03-25 18:15:12,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 62 transitions, 1004 flow [2021-03-25 18:15:12,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 62 transitions, 886 flow, removed 32 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:12,130 INFO L241 Difference]: Finished difference. Result has 70 places, 59 transitions, 813 flow [2021-03-25 18:15:12,130 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=813, PETRI_PLACES=70, PETRI_TRANSITIONS=59} [2021-03-25 18:15:12,131 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 55 predicate places. [2021-03-25 18:15:12,131 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:12,131 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 59 transitions, 813 flow [2021-03-25 18:15:12,131 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 59 transitions, 813 flow [2021-03-25 18:15:12,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 59 transitions, 813 flow [2021-03-25 18:15:12,141 INFO L129 PetriNetUnfolder]: 45/111 cut-off events. [2021-03-25 18:15:12,141 INFO L130 PetriNetUnfolder]: For 1628/1631 co-relation queries the response was YES. [2021-03-25 18:15:12,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 111 events. 45/111 cut-off events. For 1628/1631 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 412 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 747. Up to 61 conditions per place. [2021-03-25 18:15:12,142 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:12,220 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:12,220 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:12,220 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-25 18:15:12,220 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 59 transitions, 817 flow [2021-03-25 18:15:12,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:12,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:12,221 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:12,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-03-25 18:15:12,440 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:12,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:12,440 INFO L82 PathProgramCache]: Analyzing trace with hash 142445930, now seen corresponding path program 1 times [2021-03-25 18:15:12,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:12,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651764065] [2021-03-25 18:15:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:12,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,456 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:12,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:12,484 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:12,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:12,501 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 18:15:12,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651764065] [2021-03-25 18:15:12,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514028852] [2021-03-25 18:15:12,502 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 18:15:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:12,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:12,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:12,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:12,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:12,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:12,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:12,551 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:12,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:12,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:12,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:12,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:12,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:12,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:12,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:12,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:12,566 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 18:15:12,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:12,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:12,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451965792] [2021-03-25 18:15:12,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:12,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:12,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:12,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:12,567 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 55 [2021-03-25 18:15:12,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 59 transitions, 817 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:12,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:12,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 55 [2021-03-25 18:15:12,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:12,702 INFO L129 PetriNetUnfolder]: 48/121 cut-off events. [2021-03-25 18:15:12,703 INFO L130 PetriNetUnfolder]: For 2042/2045 co-relation queries the response was YES. [2021-03-25 18:15:12,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 121 events. 48/121 cut-off events. For 2042/2045 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 485 event pairs, 0 based on Foata normal form. 1/122 useless extension candidates. Maximal degree in co-relation 954. Up to 70 conditions per place. [2021-03-25 18:15:12,704 INFO L132 encePairwiseOnDemand]: 37/55 looper letters, 24 selfloop transitions, 30 changer transitions 2/63 dead transitions. [2021-03-25 18:15:12,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 63 transitions, 1081 flow [2021-03-25 18:15:12,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:12,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 109 transitions. [2021-03-25 18:15:12,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3303030303030303 [2021-03-25 18:15:12,705 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 109 transitions. [2021-03-25 18:15:12,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 109 transitions. [2021-03-25 18:15:12,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:12,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 109 transitions. [2021-03-25 18:15:12,706 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 18:15:12,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:12,706 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:12,706 INFO L185 Difference]: Start difference. First operand has 69 places, 59 transitions, 817 flow. Second operand 6 states and 109 transitions. [2021-03-25 18:15:12,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 63 transitions, 1081 flow [2021-03-25 18:15:12,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 63 transitions, 768 flow, removed 128 selfloop flow, removed 6 redundant places. [2021-03-25 18:15:12,714 INFO L241 Difference]: Finished difference. Result has 70 places, 61 transitions, 655 flow [2021-03-25 18:15:12,715 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=655, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2021-03-25 18:15:12,715 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 55 predicate places. [2021-03-25 18:15:12,715 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:12,715 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 655 flow [2021-03-25 18:15:12,715 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 655 flow [2021-03-25 18:15:12,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 61 transitions, 655 flow [2021-03-25 18:15:12,723 INFO L129 PetriNetUnfolder]: 47/115 cut-off events. [2021-03-25 18:15:12,724 INFO L130 PetriNetUnfolder]: For 1458/1481 co-relation queries the response was YES. [2021-03-25 18:15:12,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 115 events. 47/115 cut-off events. For 1458/1481 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 455 event pairs, 0 based on Foata normal form. 1/116 useless extension candidates. Maximal degree in co-relation 670. Up to 59 conditions per place. [2021-03-25 18:15:12,725 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:12,774 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:12,774 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:12,774 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-25 18:15:12,775 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 61 transitions, 657 flow [2021-03-25 18:15:12,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:12,775 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:12,775 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:12,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-03-25 18:15:12,984 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:12,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:12,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1014816794, now seen corresponding path program 1 times [2021-03-25 18:15:12,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:12,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261597397] [2021-03-25 18:15:12,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:12,995 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:12,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:13,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 18:15:13,014 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:15:13,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:13,023 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:13,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:13,030 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 18:15:13,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261597397] [2021-03-25 18:15:13,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372228482] [2021-03-25 18:15:13,031 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 18:15:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:13,047 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-25 18:15:13,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:13,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:13,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:13,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:13,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:13,071 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:13,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:13,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:13,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:13,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:13,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,093 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.0 percent of original size 45 [2021-03-25 18:15:13,093 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size [2021-03-25 18:15:13,094 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.3 percent of original size 89 [2021-03-25 18:15:13,095 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.3 percent of original size [2021-03-25 18:15:13,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 18:15:13,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 18:15:13,115 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.9 percent of original size [2021-03-25 18:15:13,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 18:15:13,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:13,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:13,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:13,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:13,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-25 18:15:13,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:13,158 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 18:15:13,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:13,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:13,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103009104] [2021-03-25 18:15:13,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:13,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:13,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:13,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:13,160 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 56 [2021-03-25 18:15:13,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 61 transitions, 657 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:13,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:13,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 56 [2021-03-25 18:15:13,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:13,337 INFO L129 PetriNetUnfolder]: 49/126 cut-off events. [2021-03-25 18:15:13,337 INFO L130 PetriNetUnfolder]: For 1671/1671 co-relation queries the response was YES. [2021-03-25 18:15:13,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 126 events. 49/126 cut-off events. For 1671/1671 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 513 event pairs, 1 based on Foata normal form. 2/128 useless extension candidates. Maximal degree in co-relation 887. Up to 102 conditions per place. [2021-03-25 18:15:13,338 INFO L132 encePairwiseOnDemand]: 33/56 looper letters, 34 selfloop transitions, 25 changer transitions 2/65 dead transitions. [2021-03-25 18:15:13,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 65 transitions, 935 flow [2021-03-25 18:15:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 18:15:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 18:15:13,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 125 transitions. [2021-03-25 18:15:13,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24801587301587302 [2021-03-25 18:15:13,340 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 125 transitions. [2021-03-25 18:15:13,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 125 transitions. [2021-03-25 18:15:13,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:13,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 125 transitions. [2021-03-25 18:15:13,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 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 18:15:13,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:13,341 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:13,341 INFO L185 Difference]: Start difference. First operand has 69 places, 61 transitions, 657 flow. Second operand 9 states and 125 transitions. [2021-03-25 18:15:13,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 65 transitions, 935 flow [2021-03-25 18:15:13,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 65 transitions, 815 flow, removed 31 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:13,351 INFO L241 Difference]: Finished difference. Result has 77 places, 63 transitions, 677 flow [2021-03-25 18:15:13,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=677, PETRI_PLACES=77, PETRI_TRANSITIONS=63} [2021-03-25 18:15:13,351 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 62 predicate places. [2021-03-25 18:15:13,351 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:13,352 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 63 transitions, 677 flow [2021-03-25 18:15:13,352 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 63 transitions, 677 flow [2021-03-25 18:15:13,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 63 transitions, 677 flow [2021-03-25 18:15:13,361 INFO L129 PetriNetUnfolder]: 47/117 cut-off events. [2021-03-25 18:15:13,361 INFO L130 PetriNetUnfolder]: For 1426/1449 co-relation queries the response was YES. [2021-03-25 18:15:13,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 117 events. 47/117 cut-off events. For 1426/1449 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 457 event pairs, 0 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 659. Up to 60 conditions per place. [2021-03-25 18:15:13,362 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:13,457 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:13,457 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:13,457 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-03-25 18:15:13,458 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 61 transitions, 631 flow [2021-03-25 18:15:13,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:13,458 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:13,458 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:13,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-03-25 18:15:13,681 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:13,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:13,681 INFO L82 PathProgramCache]: Analyzing trace with hash 228246893, now seen corresponding path program 1 times [2021-03-25 18:15:13,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:13,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584888573] [2021-03-25 18:15:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:13,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,700 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:13,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:13,726 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:13,741 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 18:15:13,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584888573] [2021-03-25 18:15:13,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032473727] [2021-03-25 18:15:13,741 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 18:15:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:13,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:13,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:13,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:13,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:13,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:13,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:13,832 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:13,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:13,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:13,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:13,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:13,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:13,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:13,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:13,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:13,849 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 18:15:13,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:13,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:13,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846728595] [2021-03-25 18:15:13,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:13,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:13,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:13,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:13,850 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 58 [2021-03-25 18:15:13,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 61 transitions, 631 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:13,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:13,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 58 [2021-03-25 18:15:13,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:13,985 INFO L129 PetriNetUnfolder]: 50/123 cut-off events. [2021-03-25 18:15:13,985 INFO L130 PetriNetUnfolder]: For 2125/2152 co-relation queries the response was YES. [2021-03-25 18:15:13,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 877 conditions, 123 events. 50/123 cut-off events. For 2125/2152 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 499 event pairs, 0 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 823. Up to 71 conditions per place. [2021-03-25 18:15:13,987 INFO L132 encePairwiseOnDemand]: 39/58 looper letters, 24 selfloop transitions, 32 changer transitions 2/65 dead transitions. [2021-03-25 18:15:13,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 65 transitions, 903 flow [2021-03-25 18:15:13,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:13,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:13,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2021-03-25 18:15:13,988 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31896551724137934 [2021-03-25 18:15:13,988 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 111 transitions. [2021-03-25 18:15:13,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 111 transitions. [2021-03-25 18:15:13,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:13,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 111 transitions. [2021-03-25 18:15:13,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 18.5) internal successors, (111), 6 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 18:15:13,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:13,989 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:13,989 INFO L185 Difference]: Start difference. First operand has 73 places, 61 transitions, 631 flow. Second operand 6 states and 111 transitions. [2021-03-25 18:15:13,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 65 transitions, 903 flow [2021-03-25 18:15:13,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 65 transitions, 803 flow, removed 27 selfloop flow, removed 8 redundant places. [2021-03-25 18:15:13,995 INFO L241 Difference]: Finished difference. Result has 72 places, 63 transitions, 686 flow [2021-03-25 18:15:13,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=686, PETRI_PLACES=72, PETRI_TRANSITIONS=63} [2021-03-25 18:15:13,996 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 57 predicate places. [2021-03-25 18:15:13,996 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:13,996 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 63 transitions, 686 flow [2021-03-25 18:15:13,996 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 63 transitions, 686 flow [2021-03-25 18:15:13,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 63 transitions, 686 flow [2021-03-25 18:15:14,010 INFO L129 PetriNetUnfolder]: 49/119 cut-off events. [2021-03-25 18:15:14,011 INFO L130 PetriNetUnfolder]: For 1189/1214 co-relation queries the response was YES. [2021-03-25 18:15:14,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 119 events. 49/119 cut-off events. For 1189/1214 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 479 event pairs, 0 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 705. Up to 62 conditions per place. [2021-03-25 18:15:14,012 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:14,014 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:14,014 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 18:15:14,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-25 18:15:14,015 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 63 transitions, 686 flow [2021-03-25 18:15:14,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:14,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:14,015 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:14,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-03-25 18:15:14,226 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:14,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:14,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1070111773, now seen corresponding path program 1 times [2021-03-25 18:15:14,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:14,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577505826] [2021-03-25 18:15:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:14,236 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:14,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:14,249 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-03-25 18:15:14,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:14,261 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 18:15:14,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:14,273 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:14,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:14,281 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 18:15:14,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577505826] [2021-03-25 18:15:14,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012179907] [2021-03-25 18:15:14,281 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 18:15:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:14,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:14,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:14,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:14,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:14,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:14,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:14,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,329 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-25 18:15:14,329 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size [2021-03-25 18:15:14,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 18:15:14,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 18:15:14,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 18:15:14,345 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 18:15:14,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:14,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:14,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:14,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 18:15:14,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 18:15:14,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 18:15:14,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 18:15:14,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 18:15:14,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 18:15:14,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 18:15:14,372 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 18:15:14,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 18:15:14,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:14,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:14,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:14,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:14,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:14,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:14,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:14,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:14,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:14,400 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 18:15:14,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:14,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:14,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553614088] [2021-03-25 18:15:14,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:14,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:14,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:14,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:14,401 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 58 [2021-03-25 18:15:14,401 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 63 transitions, 686 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:14,401 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:14,401 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 58 [2021-03-25 18:15:14,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:14,600 INFO L129 PetriNetUnfolder]: 53/134 cut-off events. [2021-03-25 18:15:14,600 INFO L130 PetriNetUnfolder]: For 2364/2383 co-relation queries the response was YES. [2021-03-25 18:15:14,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 134 events. 53/134 cut-off events. For 2364/2383 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 560 event pairs, 1 based on Foata normal form. 21/155 useless extension candidates. Maximal degree in co-relation 981. Up to 102 conditions per place. [2021-03-25 18:15:14,601 INFO L132 encePairwiseOnDemand]: 33/58 looper letters, 30 selfloop transitions, 34 changer transitions 2/70 dead transitions. [2021-03-25 18:15:14,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 70 transitions, 1000 flow [2021-03-25 18:15:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 142 transitions. [2021-03-25 18:15:14,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24482758620689654 [2021-03-25 18:15:14,603 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 142 transitions. [2021-03-25 18:15:14,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 142 transitions. [2021-03-25 18:15:14,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:14,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 142 transitions. [2021-03-25 18:15:14,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 14.2) internal successors, (142), 10 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 18:15:14,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 58.0) internal successors, (638), 11 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:14,604 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 58.0) internal successors, (638), 11 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:14,604 INFO L185 Difference]: Start difference. First operand has 71 places, 63 transitions, 686 flow. Second operand 10 states and 142 transitions. [2021-03-25 18:15:14,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 70 transitions, 1000 flow [2021-03-25 18:15:14,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 70 transitions, 875 flow, removed 32 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:14,612 INFO L241 Difference]: Finished difference. Result has 80 places, 66 transitions, 803 flow [2021-03-25 18:15:14,612 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=803, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2021-03-25 18:15:14,613 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 65 predicate places. [2021-03-25 18:15:14,613 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:14,613 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 66 transitions, 803 flow [2021-03-25 18:15:14,613 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 66 transitions, 803 flow [2021-03-25 18:15:14,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 66 transitions, 803 flow [2021-03-25 18:15:14,622 INFO L129 PetriNetUnfolder]: 52/127 cut-off events. [2021-03-25 18:15:14,623 INFO L130 PetriNetUnfolder]: For 2314/2340 co-relation queries the response was YES. [2021-03-25 18:15:14,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 127 events. 52/127 cut-off events. For 2314/2340 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 509 event pairs, 1 based on Foata normal form. 1/128 useless extension candidates. Maximal degree in co-relation 810. Up to 67 conditions per place. [2021-03-25 18:15:14,624 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:14,703 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:14,703 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:14,703 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-25 18:15:14,704 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 810 flow [2021-03-25 18:15:14,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:14,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:14,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:14,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:14,908 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:14,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:14,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1533483481, now seen corresponding path program 2 times [2021-03-25 18:15:14,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:14,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909773872] [2021-03-25 18:15:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:14,918 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:14,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:14,933 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-03-25 18:15:14,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:14,944 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-03-25 18:15:14,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:14,953 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:14,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:14,961 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 18:15:14,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909773872] [2021-03-25 18:15:14,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972303880] [2021-03-25 18:15:14,961 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 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 18:15:14,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 18:15:14,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 18:15:14,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:14,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:14,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:14,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,988 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size 20 [2021-03-25 18:15:14,989 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-03-25 18:15:14,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:14,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:14,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:14,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:15,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:15,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:15,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:15,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:15,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:15,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:15,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:15,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:15,020 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-25 18:15:15,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:15,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:15,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:15,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:15,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:15,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:15,036 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-03-25 18:15:15,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:15,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:15,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:15:15,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:15,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:15:15,061 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 18:15:15,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:15,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:15,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724238170] [2021-03-25 18:15:15,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:15,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:15,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:15,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:15,062 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2021-03-25 18:15:15,062 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 810 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:15,062 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:15,062 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2021-03-25 18:15:15,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:15,236 INFO L129 PetriNetUnfolder]: 54/129 cut-off events. [2021-03-25 18:15:15,237 INFO L130 PetriNetUnfolder]: For 2487/2487 co-relation queries the response was YES. [2021-03-25 18:15:15,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 129 events. 54/129 cut-off events. For 2487/2487 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 515 event pairs, 1 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 959. Up to 102 conditions per place. [2021-03-25 18:15:15,238 INFO L132 encePairwiseOnDemand]: 33/60 looper letters, 30 selfloop transitions, 34 changer transitions 1/69 dead transitions. [2021-03-25 18:15:15,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 69 transitions, 1041 flow [2021-03-25 18:15:15,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 18:15:15,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 18:15:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 132 transitions. [2021-03-25 18:15:15,239 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24444444444444444 [2021-03-25 18:15:15,239 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 132 transitions. [2021-03-25 18:15:15,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 132 transitions. [2021-03-25 18:15:15,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:15,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 132 transitions. [2021-03-25 18:15:15,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 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 18:15:15,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:15,241 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:15,241 INFO L185 Difference]: Start difference. First operand has 77 places, 66 transitions, 810 flow. Second operand 9 states and 132 transitions. [2021-03-25 18:15:15,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 69 transitions, 1041 flow [2021-03-25 18:15:15,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 69 transitions, 774 flow, removed 114 selfloop flow, removed 6 redundant places. [2021-03-25 18:15:15,263 INFO L241 Difference]: Finished difference. Result has 82 places, 68 transitions, 718 flow [2021-03-25 18:15:15,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=718, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2021-03-25 18:15:15,264 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 67 predicate places. [2021-03-25 18:15:15,264 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:15,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 68 transitions, 718 flow [2021-03-25 18:15:15,264 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 68 transitions, 718 flow [2021-03-25 18:15:15,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 68 transitions, 718 flow [2021-03-25 18:15:15,274 INFO L129 PetriNetUnfolder]: 52/123 cut-off events. [2021-03-25 18:15:15,274 INFO L130 PetriNetUnfolder]: For 1510/1535 co-relation queries the response was YES. [2021-03-25 18:15:15,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 123 events. 52/123 cut-off events. For 1510/1535 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 488 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 748. Up to 65 conditions per place. [2021-03-25 18:15:15,275 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:15,305 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:15,306 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:15,306 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-25 18:15:15,307 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 722 flow [2021-03-25 18:15:15,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:15,308 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:15,308 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:15,529 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:15,529 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:15,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:15,529 INFO L82 PathProgramCache]: Analyzing trace with hash 314134346, now seen corresponding path program 1 times [2021-03-25 18:15:15,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:15,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317965471] [2021-03-25 18:15:15,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:15,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,543 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:15,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:15,568 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:15,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:15,583 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 18:15:15,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317965471] [2021-03-25 18:15:15,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187085544] [2021-03-25 18:15:15,583 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 18:15:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:15,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:15,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:15,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:15,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:15,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:15,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:15,630 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:15,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:15,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:15,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:15,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:15,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:15,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:15,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:15,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:15,650 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 18:15:15,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:15,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:15,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477275132] [2021-03-25 18:15:15,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:15,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:15,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:15,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:15,652 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 61 [2021-03-25 18:15:15,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 68 transitions, 722 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:15,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:15,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 61 [2021-03-25 18:15:15,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:15,805 INFO L129 PetriNetUnfolder]: 55/133 cut-off events. [2021-03-25 18:15:15,805 INFO L130 PetriNetUnfolder]: For 2441/2444 co-relation queries the response was YES. [2021-03-25 18:15:15,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 133 events. 55/133 cut-off events. For 2441/2444 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 558 event pairs, 0 based on Foata normal form. 1/134 useless extension candidates. Maximal degree in co-relation 979. Up to 79 conditions per place. [2021-03-25 18:15:15,806 INFO L132 encePairwiseOnDemand]: 41/61 looper letters, 30 selfloop transitions, 34 changer transitions 2/72 dead transitions. [2021-03-25 18:15:15,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 72 transitions, 1020 flow [2021-03-25 18:15:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:15,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 114 transitions. [2021-03-25 18:15:15,807 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3114754098360656 [2021-03-25 18:15:15,807 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 114 transitions. [2021-03-25 18:15:15,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 114 transitions. [2021-03-25 18:15:15,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:15,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 114 transitions. [2021-03-25 18:15:15,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.0) internal successors, (114), 6 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 18:15:15,808 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 18:15:15,808 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 18:15:15,808 INFO L185 Difference]: Start difference. First operand has 81 places, 68 transitions, 722 flow. Second operand 6 states and 114 transitions. [2021-03-25 18:15:15,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 72 transitions, 1020 flow [2021-03-25 18:15:15,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 72 transitions, 929 flow, removed 13 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:15,815 INFO L241 Difference]: Finished difference. Result has 81 places, 70 transitions, 792 flow [2021-03-25 18:15:15,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=792, PETRI_PLACES=81, PETRI_TRANSITIONS=70} [2021-03-25 18:15:15,816 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 66 predicate places. [2021-03-25 18:15:15,816 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:15,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 70 transitions, 792 flow [2021-03-25 18:15:15,816 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 70 transitions, 792 flow [2021-03-25 18:15:15,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 70 transitions, 792 flow [2021-03-25 18:15:15,824 INFO L129 PetriNetUnfolder]: 54/127 cut-off events. [2021-03-25 18:15:15,824 INFO L130 PetriNetUnfolder]: For 1952/1955 co-relation queries the response was YES. [2021-03-25 18:15:15,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 127 events. 54/127 cut-off events. For 1952/1955 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 513 event pairs, 1 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 819. Up to 67 conditions per place. [2021-03-25 18:15:15,825 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:15,868 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:15,868 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:15,868 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-25 18:15:15,868 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 70 transitions, 793 flow [2021-03-25 18:15:15,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:15,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:15,869 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:16,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:16,084 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:16,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1330308861, now seen corresponding path program 1 times [2021-03-25 18:15:16,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:16,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536452030] [2021-03-25 18:15:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:16,098 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:16,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:16,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:16,121 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:16,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:16,133 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:16,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:16,141 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 18:15:16,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536452030] [2021-03-25 18:15:16,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905207114] [2021-03-25 18:15:16,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:15:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:16,160 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-25 18:15:16,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:16,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,168 INFO L147 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size 21 [2021-03-25 18:15:16,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:16,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:16,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:16,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:16,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:16,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:16,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:16,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:16,186 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 18:15:16,186 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.8 percent of original size 37 [2021-03-25 18:15:16,187 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.7 percent of original size [2021-03-25 18:15:16,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:16,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:15:16,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 18:15:16,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:16,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:15:16,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,207 INFO L147 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size 23 [2021-03-25 18:15:16,208 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-03-25 18:15:16,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:16,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:16,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:16,226 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 18:15:16,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 18:15:16,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:16,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:15:16,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:16,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:16,266 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 18:15:16,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:16,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:16,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378964081] [2021-03-25 18:15:16,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:16,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:16,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:16,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:16,267 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 62 [2021-03-25 18:15:16,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 793 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:16,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:16,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 62 [2021-03-25 18:15:16,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:16,497 INFO L129 PetriNetUnfolder]: 56/138 cut-off events. [2021-03-25 18:15:16,497 INFO L130 PetriNetUnfolder]: For 2309/2309 co-relation queries the response was YES. [2021-03-25 18:15:16,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 138 events. 56/138 cut-off events. For 2309/2309 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 574 event pairs, 1 based on Foata normal form. 2/140 useless extension candidates. Maximal degree in co-relation 1066. Up to 114 conditions per place. [2021-03-25 18:15:16,498 INFO L132 encePairwiseOnDemand]: 35/62 looper letters, 39 selfloop transitions, 29 changer transitions 2/74 dead transitions. [2021-03-25 18:15:16,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 74 transitions, 1113 flow [2021-03-25 18:15:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 18:15:16,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 18:15:16,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 130 transitions. [2021-03-25 18:15:16,500 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23297491039426524 [2021-03-25 18:15:16,500 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 130 transitions. [2021-03-25 18:15:16,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 130 transitions. [2021-03-25 18:15:16,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:16,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 130 transitions. [2021-03-25 18:15:16,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:16,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:16,501 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:16,501 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 793 flow. Second operand 9 states and 130 transitions. [2021-03-25 18:15:16,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 74 transitions, 1113 flow [2021-03-25 18:15:16,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 74 transitions, 975 flow, removed 36 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:16,511 INFO L241 Difference]: Finished difference. Result has 88 places, 72 transitions, 815 flow [2021-03-25 18:15:16,511 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=815, PETRI_PLACES=88, PETRI_TRANSITIONS=72} [2021-03-25 18:15:16,511 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 73 predicate places. [2021-03-25 18:15:16,511 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:16,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 72 transitions, 815 flow [2021-03-25 18:15:16,512 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 72 transitions, 815 flow [2021-03-25 18:15:16,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 72 transitions, 815 flow [2021-03-25 18:15:16,522 INFO L129 PetriNetUnfolder]: 54/129 cut-off events. [2021-03-25 18:15:16,522 INFO L130 PetriNetUnfolder]: For 1913/1916 co-relation queries the response was YES. [2021-03-25 18:15:16,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 129 events. 54/129 cut-off events. For 1913/1916 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 525 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 804. Up to 68 conditions per place. [2021-03-25 18:15:16,523 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:16,625 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:16,625 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:16,625 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 114 [2021-03-25 18:15:16,627 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 70 transitions, 765 flow [2021-03-25 18:15:16,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:16,627 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:16,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:16,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-03-25 18:15:16,844 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:16,844 INFO L82 PathProgramCache]: Analyzing trace with hash 400021799, now seen corresponding path program 1 times [2021-03-25 18:15:16,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:16,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487927584] [2021-03-25 18:15:16,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:16,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,860 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:16,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:16,885 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:16,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:16,900 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 18:15:16,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487927584] [2021-03-25 18:15:16,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959287256] [2021-03-25 18:15:16,901 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 18:15:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:16,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:16,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:16,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:16,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:16,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:16,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:16,942 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:16,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:16,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:16,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:16,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:16,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:16,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:16,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:16,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:16,980 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 18:15:16,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:16,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:16,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082409653] [2021-03-25 18:15:16,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:16,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:16,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:16,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:16,981 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 64 [2021-03-25 18:15:16,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 70 transitions, 765 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:16,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:16,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 64 [2021-03-25 18:15:16,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:17,125 INFO L129 PetriNetUnfolder]: 57/137 cut-off events. [2021-03-25 18:15:17,126 INFO L130 PetriNetUnfolder]: For 3106/3109 co-relation queries the response was YES. [2021-03-25 18:15:17,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 137 events. 57/137 cut-off events. For 3106/3109 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 578 event pairs, 0 based on Foata normal form. 1/138 useless extension candidates. Maximal degree in co-relation 1021. Up to 81 conditions per place. [2021-03-25 18:15:17,127 INFO L132 encePairwiseOnDemand]: 43/64 looper letters, 30 selfloop transitions, 36 changer transitions 2/74 dead transitions. [2021-03-25 18:15:17,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 74 transitions, 1081 flow [2021-03-25 18:15:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2021-03-25 18:15:17,128 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3020833333333333 [2021-03-25 18:15:17,128 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 116 transitions. [2021-03-25 18:15:17,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 116 transitions. [2021-03-25 18:15:17,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:17,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 116 transitions. [2021-03-25 18:15:17,128 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 18:15:17,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 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 18:15:17,128 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 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 18:15:17,128 INFO L185 Difference]: Start difference. First operand has 84 places, 70 transitions, 765 flow. Second operand 6 states and 116 transitions. [2021-03-25 18:15:17,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 74 transitions, 1081 flow [2021-03-25 18:15:17,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 74 transitions, 994 flow, removed 29 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:17,137 INFO L241 Difference]: Finished difference. Result has 84 places, 72 transitions, 853 flow [2021-03-25 18:15:17,137 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=853, PETRI_PLACES=84, PETRI_TRANSITIONS=72} [2021-03-25 18:15:17,138 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 69 predicate places. [2021-03-25 18:15:17,138 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:17,138 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 72 transitions, 853 flow [2021-03-25 18:15:17,138 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 72 transitions, 853 flow [2021-03-25 18:15:17,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 72 transitions, 853 flow [2021-03-25 18:15:17,147 INFO L129 PetriNetUnfolder]: 56/133 cut-off events. [2021-03-25 18:15:17,147 INFO L130 PetriNetUnfolder]: For 1425/1426 co-relation queries the response was YES. [2021-03-25 18:15:17,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 133 events. 56/133 cut-off events. For 1425/1426 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 541 event pairs, 1 based on Foata normal form. 1/134 useless extension candidates. Maximal degree in co-relation 910. Up to 70 conditions per place. [2021-03-25 18:15:17,148 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:17,188 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:17,188 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:17,188 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 18:15:17,188 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 855 flow [2021-03-25 18:15:17,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:17,189 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:17,189 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:17,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:17,400 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:17,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:17,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1502083767, now seen corresponding path program 1 times [2021-03-25 18:15:17,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:17,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414895073] [2021-03-25 18:15:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:17,412 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 18:15:17,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:17,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:17,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:17,432 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:17,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:17,443 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:17,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:17,452 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 18:15:17,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414895073] [2021-03-25 18:15:17,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629033922] [2021-03-25 18:15:17,453 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) [2021-03-25 18:15:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:17,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 22 conjunts are in the unsatisfiable core [2021-03-25 18:15:17,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:17,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:17,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:17,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:17,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:17,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:17,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:17,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:17,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:17,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:17,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 18:15:17,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 18:15:17,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 18:15:17,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 18:15:17,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 18:15:17,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 18:15:17,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 18:15:17,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 18:15:17,513 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-03-25 18:15:17,514 INFO L147 QuantifierPusher]: treesize reduction 4, result has 88.9 percent of original size 32 [2021-03-25 18:15:17,514 INFO L142 QuantifierPusher]: treesize reduction 4, result has 89.2 percent of original size [2021-03-25 18:15:17,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:17,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:17,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,534 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size 44 [2021-03-25 18:15:17,535 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-25 18:15:17,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 18:15:17,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 18:15:17,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 18:15:17,560 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.8 percent of original size [2021-03-25 18:15:17,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 18:15:17,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:17,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 18:15:17,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:17,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,567 INFO L147 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size 119 [2021-03-25 18:15:17,568 INFO L142 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size [2021-03-25 18:15:17,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 18:15:17,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:17,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:17,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:17,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:17,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:17,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:17,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:17,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:17,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:17,611 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 18:15:17,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:17,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:17,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390253058] [2021-03-25 18:15:17,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:17,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:17,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:17,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:17,612 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 65 [2021-03-25 18:15:17,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 855 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:17,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:17,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 65 [2021-03-25 18:15:17,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:17,783 INFO L129 PetriNetUnfolder]: 58/138 cut-off events. [2021-03-25 18:15:17,783 INFO L130 PetriNetUnfolder]: For 2586/2586 co-relation queries the response was YES. [2021-03-25 18:15:17,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 138 events. 58/138 cut-off events. For 2586/2586 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 571 event pairs, 1 based on Foata normal form. 1/139 useless extension candidates. Maximal degree in co-relation 1092. Up to 118 conditions per place. [2021-03-25 18:15:17,785 INFO L132 encePairwiseOnDemand]: 37/65 looper letters, 40 selfloop transitions, 29 changer transitions 1/74 dead transitions. [2021-03-25 18:15:17,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 74 transitions, 1091 flow [2021-03-25 18:15:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 18:15:17,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 18:15:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 109 transitions. [2021-03-25 18:15:17,786 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23956043956043957 [2021-03-25 18:15:17,786 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 109 transitions. [2021-03-25 18:15:17,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 109 transitions. [2021-03-25 18:15:17,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:17,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 109 transitions. [2021-03-25 18:15:17,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 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 18:15:17,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 65.0) internal successors, (520), 8 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:17,787 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 65.0) internal successors, (520), 8 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:17,787 INFO L185 Difference]: Start difference. First operand has 83 places, 72 transitions, 855 flow. Second operand 7 states and 109 transitions. [2021-03-25 18:15:17,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 74 transitions, 1091 flow [2021-03-25 18:15:17,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 74 transitions, 943 flow, removed 39 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:17,798 INFO L241 Difference]: Finished difference. Result has 87 places, 73 transitions, 821 flow [2021-03-25 18:15:17,798 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=821, PETRI_PLACES=87, PETRI_TRANSITIONS=73} [2021-03-25 18:15:17,798 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 72 predicate places. [2021-03-25 18:15:17,798 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:17,798 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 73 transitions, 821 flow [2021-03-25 18:15:17,799 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 73 transitions, 821 flow [2021-03-25 18:15:17,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 73 transitions, 821 flow [2021-03-25 18:15:17,810 INFO L129 PetriNetUnfolder]: 56/132 cut-off events. [2021-03-25 18:15:17,810 INFO L130 PetriNetUnfolder]: For 2108/2113 co-relation queries the response was YES. [2021-03-25 18:15:17,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 132 events. 56/132 cut-off events. For 2108/2113 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 538 event pairs, 0 based on Foata normal form. 2/134 useless extension candidates. Maximal degree in co-relation 839. Up to 70 conditions per place. [2021-03-25 18:15:17,811 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:17,853 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:17,853 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:17,853 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-25 18:15:17,854 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 72 transitions, 817 flow [2021-03-25 18:15:17,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:17,854 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:17,854 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:18,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-03-25 18:15:18,054 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:18,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:18,055 INFO L82 PathProgramCache]: Analyzing trace with hash 485995742, now seen corresponding path program 1 times [2021-03-25 18:15:18,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:18,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143112806] [2021-03-25 18:15:18,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:18,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,075 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:18,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:18,098 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:18,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,109 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 18:15:18,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143112806] [2021-03-25 18:15:18,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230431812] [2021-03-25 18:15:18,110 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 18:15:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:18,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:18,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:18,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,152 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:18,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:18,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:18,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:18,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:18,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:18,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,170 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 18:15:18,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:18,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:18,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733666882] [2021-03-25 18:15:18,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:18,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:18,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:18,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:18,172 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 66 [2021-03-25 18:15:18,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 72 transitions, 817 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:18,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:18,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 66 [2021-03-25 18:15:18,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:18,344 INFO L129 PetriNetUnfolder]: 59/140 cut-off events. [2021-03-25 18:15:18,344 INFO L130 PetriNetUnfolder]: For 2766/2804 co-relation queries the response was YES. [2021-03-25 18:15:18,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1119 conditions, 140 events. 59/140 cut-off events. For 2766/2804 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 585 event pairs, 1 based on Foata normal form. 1/141 useless extension candidates. Maximal degree in co-relation 1067. Up to 82 conditions per place. [2021-03-25 18:15:18,345 INFO L132 encePairwiseOnDemand]: 44/66 looper letters, 30 selfloop transitions, 38 changer transitions 2/76 dead transitions. [2021-03-25 18:15:18,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 76 transitions, 1145 flow [2021-03-25 18:15:18,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:18,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:18,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2021-03-25 18:15:18,346 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29797979797979796 [2021-03-25 18:15:18,346 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 118 transitions. [2021-03-25 18:15:18,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 118 transitions. [2021-03-25 18:15:18,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:18,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 118 transitions. [2021-03-25 18:15:18,347 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 18:15:18,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:18,348 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:18,348 INFO L185 Difference]: Start difference. First operand has 85 places, 72 transitions, 817 flow. Second operand 6 states and 118 transitions. [2021-03-25 18:15:18,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 76 transitions, 1145 flow [2021-03-25 18:15:18,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 76 transitions, 1031 flow, removed 29 selfloop flow, removed 6 redundant places. [2021-03-25 18:15:18,358 INFO L241 Difference]: Finished difference. Result has 86 places, 74 transitions, 886 flow [2021-03-25 18:15:18,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=886, PETRI_PLACES=86, PETRI_TRANSITIONS=74} [2021-03-25 18:15:18,359 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 71 predicate places. [2021-03-25 18:15:18,359 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:18,359 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 74 transitions, 886 flow [2021-03-25 18:15:18,359 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 74 transitions, 886 flow [2021-03-25 18:15:18,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 74 transitions, 886 flow [2021-03-25 18:15:18,370 INFO L129 PetriNetUnfolder]: 58/137 cut-off events. [2021-03-25 18:15:18,370 INFO L130 PetriNetUnfolder]: For 2808/2808 co-relation queries the response was YES. [2021-03-25 18:15:18,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 996 conditions, 137 events. 58/137 cut-off events. For 2808/2808 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 560 event pairs, 1 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 949. Up to 73 conditions per place. [2021-03-25 18:15:18,371 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 18:15:18,422 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:18,422 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:18,422 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-03-25 18:15:18,426 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 888 flow [2021-03-25 18:15:18,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:18,427 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:18,427 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:18,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:18,649 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:18,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1658093127, now seen corresponding path program 1 times [2021-03-25 18:15:18,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:18,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295477872] [2021-03-25 18:15:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:18,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,678 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:18,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:18,711 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:18,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:18,726 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 18:15:18,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295477872] [2021-03-25 18:15:18,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277934213] [2021-03-25 18:15:18,727 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 18:15:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:18,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 18:15:18,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:18,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:18,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:18,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:18,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:18,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:18,791 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:18,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:18,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:18,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:18,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:18,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:18,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:18,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:18,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:18,806 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 18:15:18,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:18,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:18,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668474986] [2021-03-25 18:15:18,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:18,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:18,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:18,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:18,808 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 67 [2021-03-25 18:15:18,808 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 888 flow. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:18,808 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:18,808 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 67 [2021-03-25 18:15:18,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:19,034 INFO L129 PetriNetUnfolder]: 61/143 cut-off events. [2021-03-25 18:15:19,035 INFO L130 PetriNetUnfolder]: For 2424/2490 co-relation queries the response was YES. [2021-03-25 18:15:19,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1221 conditions, 143 events. 61/143 cut-off events. For 2424/2490 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 603 event pairs, 0 based on Foata normal form. 1/144 useless extension candidates. Maximal degree in co-relation 1169. Up to 113 conditions per place. [2021-03-25 18:15:19,036 INFO L132 encePairwiseOnDemand]: 37/67 looper letters, 34 selfloop transitions, 33 changer transitions 2/78 dead transitions. [2021-03-25 18:15:19,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 78 transitions, 1184 flow [2021-03-25 18:15:19,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 18:15:19,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 18:15:19,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2021-03-25 18:15:19,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2021-03-25 18:15:19,037 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 134 transitions. [2021-03-25 18:15:19,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 134 transitions. [2021-03-25 18:15:19,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:19,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 134 transitions. [2021-03-25 18:15:19,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 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 18:15:19,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:19,038 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:19,038 INFO L185 Difference]: Start difference. First operand has 85 places, 74 transitions, 888 flow. Second operand 7 states and 134 transitions. [2021-03-25 18:15:19,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 78 transitions, 1184 flow [2021-03-25 18:15:19,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 78 transitions, 1028 flow, removed 41 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:19,051 INFO L241 Difference]: Finished difference. Result has 89 places, 76 transitions, 905 flow [2021-03-25 18:15:19,051 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=905, PETRI_PLACES=89, PETRI_TRANSITIONS=76} [2021-03-25 18:15:19,051 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 74 predicate places. [2021-03-25 18:15:19,051 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:19,051 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 76 transitions, 905 flow [2021-03-25 18:15:19,051 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 76 transitions, 905 flow [2021-03-25 18:15:19,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 76 transitions, 905 flow [2021-03-25 18:15:19,061 INFO L129 PetriNetUnfolder]: 60/140 cut-off events. [2021-03-25 18:15:19,061 INFO L130 PetriNetUnfolder]: For 2131/2164 co-relation queries the response was YES. [2021-03-25 18:15:19,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 140 events. 60/140 cut-off events. For 2131/2164 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 590 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 975. Up to 75 conditions per place. [2021-03-25 18:15:19,062 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-25 18:15:19,117 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 18:15:19,118 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:19,118 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-25 18:15:19,118 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 911 flow [2021-03-25 18:15:19,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:19,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:19,118 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:19,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-03-25 18:15:19,319 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:19,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:19,319 INFO L82 PathProgramCache]: Analyzing trace with hash 543167554, now seen corresponding path program 1 times [2021-03-25 18:15:19,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:19,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253230496] [2021-03-25 18:15:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:19,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,345 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:19,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:19,370 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:19,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:19,381 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 18:15:19,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253230496] [2021-03-25 18:15:19,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479336016] [2021-03-25 18:15:19,381 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 18:15:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:19,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:19,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:19,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:19,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:19,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:19,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:19,435 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:19,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:19,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:19,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:19,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:19,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:19,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:19,450 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 18:15:19,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:19,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:19,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398477170] [2021-03-25 18:15:19,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:19,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:19,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:19,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:19,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 68 [2021-03-25 18:15:19,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 76 transitions, 911 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:19,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:19,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 68 [2021-03-25 18:15:19,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:19,597 INFO L129 PetriNetUnfolder]: 62/148 cut-off events. [2021-03-25 18:15:19,597 INFO L130 PetriNetUnfolder]: For 2414/2419 co-relation queries the response was YES. [2021-03-25 18:15:19,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 148 events. 62/148 cut-off events. For 2414/2419 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 639 event pairs, 1 based on Foata normal form. 1/149 useless extension candidates. Maximal degree in co-relation 1224. Up to 88 conditions per place. [2021-03-25 18:15:19,599 INFO L132 encePairwiseOnDemand]: 44/68 looper letters, 31 selfloop transitions, 41 changer transitions 2/80 dead transitions. [2021-03-25 18:15:19,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 80 transitions, 1257 flow [2021-03-25 18:15:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:19,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:19,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2021-03-25 18:15:19,600 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29411764705882354 [2021-03-25 18:15:19,600 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 120 transitions. [2021-03-25 18:15:19,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 120 transitions. [2021-03-25 18:15:19,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:19,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 120 transitions. [2021-03-25 18:15:19,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 20.0) internal successors, (120), 6 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 18:15:19,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:19,601 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:19,601 INFO L185 Difference]: Start difference. First operand has 88 places, 76 transitions, 911 flow. Second operand 6 states and 120 transitions. [2021-03-25 18:15:19,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 80 transitions, 1257 flow [2021-03-25 18:15:19,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 80 transitions, 1152 flow, removed 21 selfloop flow, removed 5 redundant places. [2021-03-25 18:15:19,616 INFO L241 Difference]: Finished difference. Result has 90 places, 78 transitions, 999 flow [2021-03-25 18:15:19,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=999, PETRI_PLACES=90, PETRI_TRANSITIONS=78} [2021-03-25 18:15:19,617 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 75 predicate places. [2021-03-25 18:15:19,617 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:19,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 78 transitions, 999 flow [2021-03-25 18:15:19,617 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 78 transitions, 999 flow [2021-03-25 18:15:19,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 78 transitions, 999 flow [2021-03-25 18:15:19,628 INFO L129 PetriNetUnfolder]: 62/144 cut-off events. [2021-03-25 18:15:19,628 INFO L130 PetriNetUnfolder]: For 2429/2435 co-relation queries the response was YES. [2021-03-25 18:15:19,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 144 events. 62/144 cut-off events. For 2429/2435 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 615 event pairs, 1 based on Foata normal form. 1/145 useless extension candidates. Maximal degree in co-relation 1076. Up to 76 conditions per place. [2021-03-25 18:15:19,630 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-25 18:15:19,676 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:19,676 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:19,676 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-25 18:15:19,676 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 78 transitions, 1001 flow [2021-03-25 18:15:19,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:19,676 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:19,676 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:19,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-03-25 18:15:19,877 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:19,877 INFO L82 PathProgramCache]: Analyzing trace with hash 547588199, now seen corresponding path program 1 times [2021-03-25 18:15:19,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:19,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173703094] [2021-03-25 18:15:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:19,885 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:19,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:19,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:19,905 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:19,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:19,914 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:19,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:19,922 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 18:15:19,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173703094] [2021-03-25 18:15:19,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452781958] [2021-03-25 18:15:19,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 18:15:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:19,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:19,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:19,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,949 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-03-25 18:15:19,949 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-03-25 18:15:19,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:19,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:19,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:19,964 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-03-25 18:15:19,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 18:15:19,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:19,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:19,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:19,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:19,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:19,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,982 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size 47 [2021-03-25 18:15:19,982 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 18:15:19,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:19,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:19,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:19,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:20,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:20,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:20,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:20,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:20,004 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-25 18:15:20,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 18:15:20,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:20,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:20,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 18:15:20,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 18:15:20,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 18:15:20,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 18:15:20,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 18:15:20,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 18:15:20,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 18:15:20,038 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 18:15:20,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:20,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:20,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975147203] [2021-03-25 18:15:20,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:20,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:20,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:20,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:20,039 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 69 [2021-03-25 18:15:20,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 78 transitions, 1001 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:20,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:20,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 69 [2021-03-25 18:15:20,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:20,268 INFO L129 PetriNetUnfolder]: 64/153 cut-off events. [2021-03-25 18:15:20,268 INFO L130 PetriNetUnfolder]: For 2979/2979 co-relation queries the response was YES. [2021-03-25 18:15:20,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1371 conditions, 153 events. 64/153 cut-off events. For 2979/2979 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 660 event pairs, 1 based on Foata normal form. 2/155 useless extension candidates. Maximal degree in co-relation 1317. Up to 130 conditions per place. [2021-03-25 18:15:20,269 INFO L132 encePairwiseOnDemand]: 43/69 looper letters, 49 selfloop transitions, 29 changer transitions 2/84 dead transitions. [2021-03-25 18:15:20,269 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 84 transitions, 1379 flow [2021-03-25 18:15:20,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 18:15:20,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 18:15:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 138 transitions. [2021-03-25 18:15:20,271 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2222222222222222 [2021-03-25 18:15:20,271 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 138 transitions. [2021-03-25 18:15:20,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 138 transitions. [2021-03-25 18:15:20,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:20,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 138 transitions. [2021-03-25 18:15:20,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 15.333333333333334) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:20,272 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 18:15:20,272 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 18:15:20,272 INFO L185 Difference]: Start difference. First operand has 89 places, 78 transitions, 1001 flow. Second operand 9 states and 138 transitions. [2021-03-25 18:15:20,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 84 transitions, 1379 flow [2021-03-25 18:15:20,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 84 transitions, 1211 flow, removed 44 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:20,289 INFO L241 Difference]: Finished difference. Result has 98 places, 82 transitions, 1101 flow [2021-03-25 18:15:20,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1101, PETRI_PLACES=98, PETRI_TRANSITIONS=82} [2021-03-25 18:15:20,289 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 83 predicate places. [2021-03-25 18:15:20,289 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:20,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 82 transitions, 1101 flow [2021-03-25 18:15:20,289 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 82 transitions, 1101 flow [2021-03-25 18:15:20,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 82 transitions, 1101 flow [2021-03-25 18:15:20,301 INFO L129 PetriNetUnfolder]: 62/146 cut-off events. [2021-03-25 18:15:20,301 INFO L130 PetriNetUnfolder]: For 2987/3026 co-relation queries the response was YES. [2021-03-25 18:15:20,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 146 events. 62/146 cut-off events. For 2987/3026 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 619 event pairs, 0 based on Foata normal form. 2/148 useless extension candidates. Maximal degree in co-relation 1091. Up to 77 conditions per place. [2021-03-25 18:15:20,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:20,432 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:20,432 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:20,433 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 144 [2021-03-25 18:15:20,433 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 80 transitions, 1017 flow [2021-03-25 18:15:20,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:20,433 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:20,433 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:20,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-03-25 18:15:20,648 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:20,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:20,648 INFO L82 PathProgramCache]: Analyzing trace with hash 600512346, now seen corresponding path program 1 times [2021-03-25 18:15:20,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:20,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291635982] [2021-03-25 18:15:20,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:20,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,664 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:20,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:20,689 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:20,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:20,705 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 18:15:20,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291635982] [2021-03-25 18:15:20,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528068891] [2021-03-25 18:15:20,705 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 18:15:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:20,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:20,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:20,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:20,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:20,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:20,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:20,750 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:20,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:20,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:20,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:20,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:20,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:20,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:20,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:20,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:20,765 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 18:15:20,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:20,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:20,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784228412] [2021-03-25 18:15:20,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:20,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:20,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:20,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:20,766 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 72 [2021-03-25 18:15:20,766 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 80 transitions, 1017 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:20,766 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:20,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 72 [2021-03-25 18:15:20,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:20,927 INFO L129 PetriNetUnfolder]: 65/153 cut-off events. [2021-03-25 18:15:20,927 INFO L130 PetriNetUnfolder]: For 4549/4554 co-relation queries the response was YES. [2021-03-25 18:15:20,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 153 events. 65/153 cut-off events. For 4549/4554 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 662 event pairs, 0 based on Foata normal form. 1/154 useless extension candidates. Maximal degree in co-relation 1338. Up to 91 conditions per place. [2021-03-25 18:15:20,929 INFO L132 encePairwiseOnDemand]: 46/72 looper letters, 32 selfloop transitions, 44 changer transitions 2/84 dead transitions. [2021-03-25 18:15:20,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 84 transitions, 1385 flow [2021-03-25 18:15:20,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2021-03-25 18:15:20,930 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2847222222222222 [2021-03-25 18:15:20,930 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 123 transitions. [2021-03-25 18:15:20,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 123 transitions. [2021-03-25 18:15:20,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:20,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 123 transitions. [2021-03-25 18:15:20,930 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 18:15:20,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:20,931 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:20,931 INFO L185 Difference]: Start difference. First operand has 94 places, 80 transitions, 1017 flow. Second operand 6 states and 123 transitions. [2021-03-25 18:15:20,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 84 transitions, 1385 flow [2021-03-25 18:15:20,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 84 transitions, 1196 flow, removed 92 selfloop flow, removed 5 redundant places. [2021-03-25 18:15:20,942 INFO L241 Difference]: Finished difference. Result has 96 places, 82 transitions, 1033 flow [2021-03-25 18:15:20,942 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1033, PETRI_PLACES=96, PETRI_TRANSITIONS=82} [2021-03-25 18:15:20,942 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 81 predicate places. [2021-03-25 18:15:20,943 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:20,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 82 transitions, 1033 flow [2021-03-25 18:15:20,943 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 82 transitions, 1033 flow [2021-03-25 18:15:20,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 82 transitions, 1033 flow [2021-03-25 18:15:20,953 INFO L129 PetriNetUnfolder]: 63/148 cut-off events. [2021-03-25 18:15:20,953 INFO L130 PetriNetUnfolder]: For 4205/4207 co-relation queries the response was YES. [2021-03-25 18:15:20,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 148 events. 63/148 cut-off events. For 4205/4207 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 624 event pairs, 1 based on Foata normal form. 2/150 useless extension candidates. Maximal degree in co-relation 1086. Up to 80 conditions per place. [2021-03-25 18:15:20,954 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:20,997 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:20,997 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:20,997 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 18:15:20,997 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 82 transitions, 1035 flow [2021-03-25 18:15:20,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:20,998 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:20,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:21,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-03-25 18:15:21,200 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:21,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:21,200 INFO L82 PathProgramCache]: Analyzing trace with hash 703860208, now seen corresponding path program 1 times [2021-03-25 18:15:21,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:21,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427415268] [2021-03-25 18:15:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:21,208 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 18:15:21,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:21,220 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:21,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:21,228 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:21,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:21,235 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 18:15:21,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427415268] [2021-03-25 18:15:21,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491466315] [2021-03-25 18:15:21,235 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 18:15:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:21,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 18 conjunts are in the unsatisfiable core [2021-03-25 18:15:21,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:21,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:15:21,266 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-03-25 18:15:21,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:21,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:21,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:21,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:21,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:21,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:21,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,284 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.8 percent of original size 44 [2021-03-25 18:15:21,284 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.7 percent of original size [2021-03-25 18:15:21,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:21,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:21,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:21,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:21,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:21,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:21,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:21,307 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-03-25 18:15:21,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 18:15:21,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:21,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 18:15:21,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 18:15:21,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,313 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.3 percent of original size 102 [2021-03-25 18:15:21,314 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.3 percent of original size [2021-03-25 18:15:21,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-25 18:15:21,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 18:15:21,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 18:15:21,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 18:15:21,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 18:15:21,344 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 18:15:21,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:21,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:21,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724978446] [2021-03-25 18:15:21,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:21,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:21,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:21,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:21,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 73 [2021-03-25 18:15:21,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 82 transitions, 1035 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:21,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:21,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 73 [2021-03-25 18:15:21,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:21,552 INFO L129 PetriNetUnfolder]: 66/154 cut-off events. [2021-03-25 18:15:21,552 INFO L130 PetriNetUnfolder]: For 3971/4019 co-relation queries the response was YES. [2021-03-25 18:15:21,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 154 events. 66/154 cut-off events. For 3971/4019 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 665 event pairs, 1 based on Foata normal form. 48/202 useless extension candidates. Maximal degree in co-relation 1294. Up to 135 conditions per place. [2021-03-25 18:15:21,554 INFO L132 encePairwiseOnDemand]: 45/73 looper letters, 52 selfloop transitions, 27 changer transitions 1/84 dead transitions. [2021-03-25 18:15:21,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 84 transitions, 1263 flow [2021-03-25 18:15:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:21,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 104 transitions. [2021-03-25 18:15:21,555 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2374429223744292 [2021-03-25 18:15:21,555 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 104 transitions. [2021-03-25 18:15:21,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 104 transitions. [2021-03-25 18:15:21,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:21,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 104 transitions. [2021-03-25 18:15:21,555 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 18:15:21,556 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 18:15:21,556 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 18:15:21,556 INFO L185 Difference]: Start difference. First operand has 95 places, 82 transitions, 1035 flow. Second operand 6 states and 104 transitions. [2021-03-25 18:15:21,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 84 transitions, 1263 flow [2021-03-25 18:15:21,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 84 transitions, 1085 flow, removed 46 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:21,573 INFO L241 Difference]: Finished difference. Result has 98 places, 83 transitions, 973 flow [2021-03-25 18:15:21,573 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=973, PETRI_PLACES=98, PETRI_TRANSITIONS=83} [2021-03-25 18:15:21,574 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 83 predicate places. [2021-03-25 18:15:21,574 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:21,574 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 83 transitions, 973 flow [2021-03-25 18:15:21,574 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 83 transitions, 973 flow [2021-03-25 18:15:21,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 83 transitions, 973 flow [2021-03-25 18:15:21,586 INFO L129 PetriNetUnfolder]: 64/149 cut-off events. [2021-03-25 18:15:21,586 INFO L130 PetriNetUnfolder]: For 3607/3616 co-relation queries the response was YES. [2021-03-25 18:15:21,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 149 events. 64/149 cut-off events. For 3607/3616 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 629 event pairs, 0 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 1035. Up to 79 conditions per place. [2021-03-25 18:15:21,588 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-25 18:15:21,635 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 18:15:21,635 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:21,635 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-03-25 18:15:21,635 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 82 transitions, 965 flow [2021-03-25 18:15:21,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:21,636 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:21,636 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:21,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:21,840 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:21,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:21,840 INFO L82 PathProgramCache]: Analyzing trace with hash 715028950, now seen corresponding path program 1 times [2021-03-25 18:15:21,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:21,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919494537] [2021-03-25 18:15:21,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:21,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,860 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:21,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:21,890 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:21,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:21,908 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 18:15:21,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919494537] [2021-03-25 18:15:21,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684194799] [2021-03-25 18:15:21,909 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 18:15:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:21,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:21,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:21,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:21,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:21,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:21,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:21,971 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:21,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:21,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:21,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:21,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:21,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:21,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:21,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:21,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:21,990 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 18:15:21,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:21,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:21,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486843186] [2021-03-25 18:15:21,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:21,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:21,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:21,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:21,992 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 74 [2021-03-25 18:15:21,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 82 transitions, 965 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:21,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:21,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 74 [2021-03-25 18:15:21,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:22,159 INFO L129 PetriNetUnfolder]: 67/157 cut-off events. [2021-03-25 18:15:22,160 INFO L130 PetriNetUnfolder]: For 5340/5374 co-relation queries the response was YES. [2021-03-25 18:15:22,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 157 events. 67/157 cut-off events. For 5340/5374 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 688 event pairs, 0 based on Foata normal form. 28/185 useless extension candidates. Maximal degree in co-relation 1327. Up to 93 conditions per place. [2021-03-25 18:15:22,161 INFO L132 encePairwiseOnDemand]: 47/74 looper letters, 32 selfloop transitions, 46 changer transitions 2/86 dead transitions. [2021-03-25 18:15:22,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 86 transitions, 1349 flow [2021-03-25 18:15:22,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:22,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:22,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 124 transitions. [2021-03-25 18:15:22,163 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27927927927927926 [2021-03-25 18:15:22,163 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 124 transitions. [2021-03-25 18:15:22,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 124 transitions. [2021-03-25 18:15:22,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:22,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 124 transitions. [2021-03-25 18:15:22,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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 18:15:22,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:22,163 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:22,164 INFO L185 Difference]: Start difference. First operand has 96 places, 82 transitions, 965 flow. Second operand 6 states and 124 transitions. [2021-03-25 18:15:22,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 86 transitions, 1349 flow [2021-03-25 18:15:22,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 86 transitions, 1212 flow, removed 30 selfloop flow, removed 6 redundant places. [2021-03-25 18:15:22,181 INFO L241 Difference]: Finished difference. Result has 97 places, 84 transitions, 1045 flow [2021-03-25 18:15:22,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1045, PETRI_PLACES=97, PETRI_TRANSITIONS=84} [2021-03-25 18:15:22,181 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 82 predicate places. [2021-03-25 18:15:22,181 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:22,181 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 84 transitions, 1045 flow [2021-03-25 18:15:22,181 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 84 transitions, 1045 flow [2021-03-25 18:15:22,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 84 transitions, 1045 flow [2021-03-25 18:15:22,190 INFO L129 PetriNetUnfolder]: 65/152 cut-off events. [2021-03-25 18:15:22,190 INFO L130 PetriNetUnfolder]: For 4467/4475 co-relation queries the response was YES. [2021-03-25 18:15:22,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 152 events. 65/152 cut-off events. For 4467/4475 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 654 event pairs, 1 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 1127. Up to 83 conditions per place. [2021-03-25 18:15:22,191 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:22,231 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:22,231 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:22,232 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 18:15:22,232 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 84 transitions, 1046 flow [2021-03-25 18:15:22,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:22,232 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:22,232 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:22,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-03-25 18:15:22,436 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:22,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:22,436 INFO L82 PathProgramCache]: Analyzing trace with hash 705793740, now seen corresponding path program 1 times [2021-03-25 18:15:22,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:22,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416146682] [2021-03-25 18:15:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:22,444 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:22,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:22,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:22,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:22,471 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:22,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:22,480 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 18:15:22,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416146682] [2021-03-25 18:15:22,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552754361] [2021-03-25 18:15:22,480 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 18:15:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:22,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:22,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:22,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:22,532 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:22,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:22,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:22,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:22,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:22,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:22,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:22,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,546 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-03-25 18:15:22,546 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-03-25 18:15:22,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:22,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:22,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:22,565 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 18:15:22,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:22,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:22,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:15:22,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 18:15:22,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:22,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:22,598 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 18:15:22,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:22,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:22,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242657973] [2021-03-25 18:15:22,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:22,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:22,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:22,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:22,599 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 75 [2021-03-25 18:15:22,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 84 transitions, 1046 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:22,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:22,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 75 [2021-03-25 18:15:22,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:22,810 INFO L129 PetriNetUnfolder]: 68/161 cut-off events. [2021-03-25 18:15:22,810 INFO L130 PetriNetUnfolder]: For 4103/4103 co-relation queries the response was YES. [2021-03-25 18:15:22,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1437 conditions, 161 events. 68/161 cut-off events. For 4103/4103 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 716 event pairs, 1 based on Foata normal form. 2/163 useless extension candidates. Maximal degree in co-relation 1379. Up to 139 conditions per place. [2021-03-25 18:15:22,812 INFO L132 encePairwiseOnDemand]: 46/75 looper letters, 53 selfloop transitions, 29 changer transitions 2/88 dead transitions. [2021-03-25 18:15:22,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 88 transitions, 1354 flow [2021-03-25 18:15:22,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:22,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 128 transitions. [2021-03-25 18:15:22,813 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21333333333333335 [2021-03-25 18:15:22,813 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 128 transitions. [2021-03-25 18:15:22,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 128 transitions. [2021-03-25 18:15:22,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:22,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 128 transitions. [2021-03-25 18:15:22,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:22,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 75.0) internal successors, (675), 9 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:22,814 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 75.0) internal successors, (675), 9 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:22,814 INFO L185 Difference]: Start difference. First operand has 96 places, 84 transitions, 1046 flow. Second operand 8 states and 128 transitions. [2021-03-25 18:15:22,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 88 transitions, 1354 flow [2021-03-25 18:15:22,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 88 transitions, 1194 flow, removed 48 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:22,831 INFO L241 Difference]: Finished difference. Result has 104 places, 86 transitions, 1070 flow [2021-03-25 18:15:22,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1070, PETRI_PLACES=104, PETRI_TRANSITIONS=86} [2021-03-25 18:15:22,832 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 89 predicate places. [2021-03-25 18:15:22,832 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:22,832 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 86 transitions, 1070 flow [2021-03-25 18:15:22,832 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 86 transitions, 1070 flow [2021-03-25 18:15:22,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 86 transitions, 1070 flow [2021-03-25 18:15:22,845 INFO L129 PetriNetUnfolder]: 66/154 cut-off events. [2021-03-25 18:15:22,845 INFO L130 PetriNetUnfolder]: For 4039/4052 co-relation queries the response was YES. [2021-03-25 18:15:22,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 154 events. 66/154 cut-off events. For 4039/4052 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 668 event pairs, 0 based on Foata normal form. 2/156 useless extension candidates. Maximal degree in co-relation 1128. Up to 83 conditions per place. [2021-03-25 18:15:22,847 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:22,947 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:22,947 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:22,948 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-25 18:15:22,948 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 84 transitions, 1004 flow [2021-03-25 18:15:22,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:22,948 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:22,948 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:23,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:23,156 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:23,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:23,156 INFO L82 PathProgramCache]: Analyzing trace with hash 772287252, now seen corresponding path program 1 times [2021-03-25 18:15:23,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:23,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102454936] [2021-03-25 18:15:23,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:23,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,171 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:23,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:23,201 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:23,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:23,216 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 18:15:23,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102454936] [2021-03-25 18:15:23,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556268393] [2021-03-25 18:15:23,216 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 18:15:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:23,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:23,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:23,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:23,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:23,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:23,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:23,258 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:23,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:23,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:23,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:23,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:23,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:23,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:23,277 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 18:15:23,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:23,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:23,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939801831] [2021-03-25 18:15:23,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:23,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:23,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:23,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:23,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 77 [2021-03-25 18:15:23,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 84 transitions, 1004 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:23,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:23,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 77 [2021-03-25 18:15:23,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:23,488 INFO L129 PetriNetUnfolder]: 69/161 cut-off events. [2021-03-25 18:15:23,488 INFO L130 PetriNetUnfolder]: For 5720/5788 co-relation queries the response was YES. [2021-03-25 18:15:23,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 161 events. 69/161 cut-off events. For 5720/5788 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 710 event pairs, 0 based on Foata normal form. 24/185 useless extension candidates. Maximal degree in co-relation 1373. Up to 94 conditions per place. [2021-03-25 18:15:23,490 INFO L132 encePairwiseOnDemand]: 49/77 looper letters, 32 selfloop transitions, 48 changer transitions 2/88 dead transitions. [2021-03-25 18:15:23,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 88 transitions, 1400 flow [2021-03-25 18:15:23,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:23,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2021-03-25 18:15:23,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27056277056277056 [2021-03-25 18:15:23,491 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 125 transitions. [2021-03-25 18:15:23,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 125 transitions. [2021-03-25 18:15:23,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:23,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 125 transitions. [2021-03-25 18:15:23,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 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 18:15:23,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 77.0) internal successors, (539), 7 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:23,495 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 77.0) internal successors, (539), 7 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:23,495 INFO L185 Difference]: Start difference. First operand has 100 places, 84 transitions, 1004 flow. Second operand 6 states and 125 transitions. [2021-03-25 18:15:23,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 88 transitions, 1400 flow [2021-03-25 18:15:23,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 88 transitions, 1252 flow, removed 34 selfloop flow, removed 8 redundant places. [2021-03-25 18:15:23,514 INFO L241 Difference]: Finished difference. Result has 99 places, 86 transitions, 1081 flow [2021-03-25 18:15:23,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1081, PETRI_PLACES=99, PETRI_TRANSITIONS=86} [2021-03-25 18:15:23,515 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 84 predicate places. [2021-03-25 18:15:23,515 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:23,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 86 transitions, 1081 flow [2021-03-25 18:15:23,515 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 86 transitions, 1081 flow [2021-03-25 18:15:23,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 86 transitions, 1081 flow [2021-03-25 18:15:23,527 INFO L129 PetriNetUnfolder]: 67/156 cut-off events. [2021-03-25 18:15:23,528 INFO L130 PetriNetUnfolder]: For 4723/4725 co-relation queries the response was YES. [2021-03-25 18:15:23,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 156 events. 67/156 cut-off events. For 4723/4725 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 687 event pairs, 1 based on Foata normal form. 2/158 useless extension candidates. Maximal degree in co-relation 1169. Up to 86 conditions per place. [2021-03-25 18:15:23,529 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:23,579 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:23,579 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:23,580 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-25 18:15:23,580 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 86 transitions, 1082 flow [2021-03-25 18:15:23,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:23,580 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:23,580 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:23,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:23,802 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:23,802 INFO L82 PathProgramCache]: Analyzing trace with hash 708564303, now seen corresponding path program 1 times [2021-03-25 18:15:23,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:23,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374638751] [2021-03-25 18:15:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:23,812 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:23,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:23,824 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:23,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:23,832 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:23,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:23,839 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 18:15:23,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374638751] [2021-03-25 18:15:23,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334399409] [2021-03-25 18:15:23,839 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 18:15:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:23,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:23,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:23,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:23,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:23,889 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:23,890 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-03-25 18:15:23,890 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-03-25 18:15:23,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:23,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:23,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:23,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:23,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:23,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,904 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 49 [2021-03-25 18:15:23,905 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.2 percent of original size [2021-03-25 18:15:23,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:23,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:23,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:23,923 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:15:23,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:23,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:23,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:23,955 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 18:15:23,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:23,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:23,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364402926] [2021-03-25 18:15:23,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:23,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:23,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:23,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:23,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 78 [2021-03-25 18:15:23,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 1082 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:23,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:23,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 78 [2021-03-25 18:15:23,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:24,204 INFO L129 PetriNetUnfolder]: 70/165 cut-off events. [2021-03-25 18:15:24,204 INFO L130 PetriNetUnfolder]: For 4388/4388 co-relation queries the response was YES. [2021-03-25 18:15:24,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 165 events. 70/165 cut-off events. For 4388/4388 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 746 event pairs, 1 based on Foata normal form. 2/167 useless extension candidates. Maximal degree in co-relation 1428. Up to 143 conditions per place. [2021-03-25 18:15:24,206 INFO L132 encePairwiseOnDemand]: 48/78 looper letters, 54 selfloop transitions, 30 changer transitions 2/90 dead transitions. [2021-03-25 18:15:24,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 90 transitions, 1398 flow [2021-03-25 18:15:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:24,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 129 transitions. [2021-03-25 18:15:24,207 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20673076923076922 [2021-03-25 18:15:24,207 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 129 transitions. [2021-03-25 18:15:24,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 129 transitions. [2021-03-25 18:15:24,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:24,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 129 transitions. [2021-03-25 18:15:24,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 16.125) internal successors, (129), 8 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 18:15:24,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:24,208 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:24,208 INFO L185 Difference]: Start difference. First operand has 98 places, 86 transitions, 1082 flow. Second operand 8 states and 129 transitions. [2021-03-25 18:15:24,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 90 transitions, 1398 flow [2021-03-25 18:15:24,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 90 transitions, 1204 flow, removed 50 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:24,218 INFO L241 Difference]: Finished difference. Result has 105 places, 88 transitions, 1078 flow [2021-03-25 18:15:24,219 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1078, PETRI_PLACES=105, PETRI_TRANSITIONS=88} [2021-03-25 18:15:24,219 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 90 predicate places. [2021-03-25 18:15:24,219 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:24,219 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 88 transitions, 1078 flow [2021-03-25 18:15:24,219 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 88 transitions, 1078 flow [2021-03-25 18:15:24,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 88 transitions, 1078 flow [2021-03-25 18:15:24,230 INFO L129 PetriNetUnfolder]: 68/158 cut-off events. [2021-03-25 18:15:24,230 INFO L130 PetriNetUnfolder]: For 4335/4377 co-relation queries the response was YES. [2021-03-25 18:15:24,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1229 conditions, 158 events. 68/158 cut-off events. For 4335/4377 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 692 event pairs, 0 based on Foata normal form. 2/160 useless extension candidates. Maximal degree in co-relation 1168. Up to 87 conditions per place. [2021-03-25 18:15:24,231 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:24,330 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:24,330 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:24,330 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-03-25 18:15:24,330 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 86 transitions, 1010 flow [2021-03-25 18:15:24,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:24,331 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:24,331 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:24,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-03-25 18:15:24,531 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:24,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:24,531 INFO L82 PathProgramCache]: Analyzing trace with hash 858174705, now seen corresponding path program 1 times [2021-03-25 18:15:24,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:24,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101408216] [2021-03-25 18:15:24,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:24,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,545 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:24,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:24,569 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:24,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:24,580 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 18:15:24,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101408216] [2021-03-25 18:15:24,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999938526] [2021-03-25 18:15:24,580 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 18:15:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:24,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:24,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:24,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:24,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:24,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:24,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:24,642 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:24,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:24,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:24,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:24,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:24,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:24,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:24,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:24,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:24,666 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 18:15:24,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:24,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:24,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432737031] [2021-03-25 18:15:24,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:24,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:24,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:24,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:24,668 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 80 [2021-03-25 18:15:24,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 86 transitions, 1010 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:24,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:24,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 80 [2021-03-25 18:15:24,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:24,895 INFO L129 PetriNetUnfolder]: 71/165 cut-off events. [2021-03-25 18:15:24,895 INFO L130 PetriNetUnfolder]: For 6171/6176 co-relation queries the response was YES. [2021-03-25 18:15:24,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 165 events. 71/165 cut-off events. For 6171/6176 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 741 event pairs, 0 based on Foata normal form. 1/166 useless extension candidates. Maximal degree in co-relation 1450. Up to 97 conditions per place. [2021-03-25 18:15:24,897 INFO L132 encePairwiseOnDemand]: 51/80 looper letters, 32 selfloop transitions, 50 changer transitions 2/90 dead transitions. [2021-03-25 18:15:24,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 90 transitions, 1418 flow [2021-03-25 18:15:24,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2021-03-25 18:15:24,898 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2625 [2021-03-25 18:15:24,898 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 126 transitions. [2021-03-25 18:15:24,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 126 transitions. [2021-03-25 18:15:24,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:24,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 126 transitions. [2021-03-25 18:15:24,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:24,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:24,899 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:24,899 INFO L185 Difference]: Start difference. First operand has 101 places, 86 transitions, 1010 flow. Second operand 6 states and 126 transitions. [2021-03-25 18:15:24,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 90 transitions, 1418 flow [2021-03-25 18:15:24,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 90 transitions, 1292 flow, removed 35 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:24,919 INFO L241 Difference]: Finished difference. Result has 101 places, 88 transitions, 1117 flow [2021-03-25 18:15:24,919 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1117, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2021-03-25 18:15:24,919 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 86 predicate places. [2021-03-25 18:15:24,919 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:24,920 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 88 transitions, 1117 flow [2021-03-25 18:15:24,920 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 88 transitions, 1117 flow [2021-03-25 18:15:24,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 88 transitions, 1117 flow [2021-03-25 18:15:24,934 INFO L129 PetriNetUnfolder]: 69/160 cut-off events. [2021-03-25 18:15:24,934 INFO L130 PetriNetUnfolder]: For 5016/5020 co-relation queries the response was YES. [2021-03-25 18:15:24,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1266 conditions, 160 events. 69/160 cut-off events. For 5016/5020 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 717 event pairs, 1 based on Foata normal form. 2/162 useless extension candidates. Maximal degree in co-relation 1211. Up to 90 conditions per place. [2021-03-25 18:15:24,936 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:24,986 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:24,986 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:24,986 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-25 18:15:24,986 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 88 transitions, 1118 flow [2021-03-25 18:15:24,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:24,987 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:24,987 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:25,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-03-25 18:15:25,200 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:25,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:25,200 INFO L82 PathProgramCache]: Analyzing trace with hash 711334866, now seen corresponding path program 1 times [2021-03-25 18:15:25,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:25,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587830814] [2021-03-25 18:15:25,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:25,212 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:25,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:25,227 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:25,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:25,237 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:25,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:25,244 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 18:15:25,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587830814] [2021-03-25 18:15:25,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268041257] [2021-03-25 18:15:25,245 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 18:15:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:25,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:25,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:25,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,285 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:25,286 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.3 percent of original size 41 [2021-03-25 18:15:25,286 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-03-25 18:15:25,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:25,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:25,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:25,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:25,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:25,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,302 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size 51 [2021-03-25 18:15:25,303 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size [2021-03-25 18:15:25,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 18:15:25,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 18:15:25,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 18:15:25,322 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:15:25,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 18:15:25,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:25,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:25,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 18:15:25,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:25,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:25,368 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 18:15:25,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:25,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:25,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649779630] [2021-03-25 18:15:25,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:25,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:25,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:25,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:25,369 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 81 [2021-03-25 18:15:25,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 88 transitions, 1118 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:25,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:25,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 81 [2021-03-25 18:15:25,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:25,679 INFO L129 PetriNetUnfolder]: 72/169 cut-off events. [2021-03-25 18:15:25,679 INFO L130 PetriNetUnfolder]: For 4683/4683 co-relation queries the response was YES. [2021-03-25 18:15:25,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1537 conditions, 169 events. 72/169 cut-off events. For 4683/4683 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 775 event pairs, 1 based on Foata normal form. 2/171 useless extension candidates. Maximal degree in co-relation 1477. Up to 147 conditions per place. [2021-03-25 18:15:25,681 INFO L132 encePairwiseOnDemand]: 50/81 looper letters, 55 selfloop transitions, 31 changer transitions 2/92 dead transitions. [2021-03-25 18:15:25,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 92 transitions, 1442 flow [2021-03-25 18:15:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:25,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 130 transitions. [2021-03-25 18:15:25,682 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2006172839506173 [2021-03-25 18:15:25,682 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 130 transitions. [2021-03-25 18:15:25,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 130 transitions. [2021-03-25 18:15:25,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:25,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 130 transitions. [2021-03-25 18:15:25,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:25,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:25,684 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:25,684 INFO L185 Difference]: Start difference. First operand has 100 places, 88 transitions, 1118 flow. Second operand 8 states and 130 transitions. [2021-03-25 18:15:25,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 92 transitions, 1442 flow [2021-03-25 18:15:25,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 92 transitions, 1240 flow, removed 52 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:25,703 INFO L241 Difference]: Finished difference. Result has 107 places, 90 transitions, 1112 flow [2021-03-25 18:15:25,703 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1112, PETRI_PLACES=107, PETRI_TRANSITIONS=90} [2021-03-25 18:15:25,703 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 92 predicate places. [2021-03-25 18:15:25,704 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:25,704 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 90 transitions, 1112 flow [2021-03-25 18:15:25,704 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 90 transitions, 1112 flow [2021-03-25 18:15:25,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 90 transitions, 1112 flow [2021-03-25 18:15:25,715 INFO L129 PetriNetUnfolder]: 70/162 cut-off events. [2021-03-25 18:15:25,715 INFO L130 PetriNetUnfolder]: For 4647/4696 co-relation queries the response was YES. [2021-03-25 18:15:25,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1271 conditions, 162 events. 70/162 cut-off events. For 4647/4696 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 717 event pairs, 0 based on Foata normal form. 2/164 useless extension candidates. Maximal degree in co-relation 1209. Up to 91 conditions per place. [2021-03-25 18:15:25,717 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:25,820 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:25,820 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:25,820 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-25 18:15:25,821 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 88 transitions, 1042 flow [2021-03-25 18:15:25,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:25,821 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:25,821 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:26,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-03-25 18:15:26,043 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:26,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:26,043 INFO L82 PathProgramCache]: Analyzing trace with hash 944062158, now seen corresponding path program 1 times [2021-03-25 18:15:26,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:26,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302820511] [2021-03-25 18:15:26,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:26,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,056 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:26,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:26,081 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:26,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:26,092 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 18:15:26,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302820511] [2021-03-25 18:15:26,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583564038] [2021-03-25 18:15:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 18:15:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:26,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:26,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:26,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:26,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:26,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:26,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:26,134 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:26,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:26,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:26,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:26,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:26,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:26,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:26,148 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 18:15:26,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:26,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:26,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035431871] [2021-03-25 18:15:26,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:26,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:26,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:26,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:26,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 83 [2021-03-25 18:15:26,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 88 transitions, 1042 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:26,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:26,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 83 [2021-03-25 18:15:26,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:26,339 INFO L129 PetriNetUnfolder]: 72/168 cut-off events. [2021-03-25 18:15:26,339 INFO L130 PetriNetUnfolder]: For 5565/5596 co-relation queries the response was YES. [2021-03-25 18:15:26,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1534 conditions, 168 events. 72/168 cut-off events. For 5565/5596 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 765 event pairs, 0 based on Foata normal form. 27/195 useless extension candidates. Maximal degree in co-relation 1467. Up to 98 conditions per place. [2021-03-25 18:15:26,342 INFO L132 encePairwiseOnDemand]: 53/83 looper letters, 32 selfloop transitions, 52 changer transitions 2/92 dead transitions. [2021-03-25 18:15:26,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 92 transitions, 1462 flow [2021-03-25 18:15:26,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:26,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2021-03-25 18:15:26,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25502008032128515 [2021-03-25 18:15:26,343 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 127 transitions. [2021-03-25 18:15:26,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 127 transitions. [2021-03-25 18:15:26,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:26,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 127 transitions. [2021-03-25 18:15:26,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 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 18:15:26,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:26,344 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:26,344 INFO L185 Difference]: Start difference. First operand has 103 places, 88 transitions, 1042 flow. Second operand 6 states and 127 transitions. [2021-03-25 18:15:26,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 92 transitions, 1462 flow [2021-03-25 18:15:26,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 92 transitions, 1332 flow, removed 36 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:26,361 INFO L241 Difference]: Finished difference. Result has 103 places, 90 transitions, 1153 flow [2021-03-25 18:15:26,361 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1153, PETRI_PLACES=103, PETRI_TRANSITIONS=90} [2021-03-25 18:15:26,361 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 88 predicate places. [2021-03-25 18:15:26,361 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:26,361 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 90 transitions, 1153 flow [2021-03-25 18:15:26,362 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 90 transitions, 1153 flow [2021-03-25 18:15:26,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 90 transitions, 1153 flow [2021-03-25 18:15:26,372 INFO L129 PetriNetUnfolder]: 71/164 cut-off events. [2021-03-25 18:15:26,372 INFO L130 PetriNetUnfolder]: For 5499/5507 co-relation queries the response was YES. [2021-03-25 18:15:26,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1309 conditions, 164 events. 71/164 cut-off events. For 5499/5507 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 735 event pairs, 1 based on Foata normal form. 2/166 useless extension candidates. Maximal degree in co-relation 1253. Up to 94 conditions per place. [2021-03-25 18:15:26,374 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:26,430 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:26,430 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:26,431 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-03-25 18:15:26,431 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 90 transitions, 1154 flow [2021-03-25 18:15:26,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:26,431 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:26,431 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:26,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:26,648 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:26,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:26,648 INFO L82 PathProgramCache]: Analyzing trace with hash 714018939, now seen corresponding path program 1 times [2021-03-25 18:15:26,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:26,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851825875] [2021-03-25 18:15:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:26,656 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:26,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:26,671 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:26,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:26,680 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:26,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:26,686 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 18:15:26,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851825875] [2021-03-25 18:15:26,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321466450] [2021-03-25 18:15:26,687 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 18:15:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:26,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:26,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:26,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:26,710 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:26,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:26,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:26,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:26,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:26,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:26,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:26,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,724 INFO L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-03-25 18:15:26,725 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.4 percent of original size [2021-03-25 18:15:26,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:26,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:26,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:26,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:26,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:26,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:26,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:26,745 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 18:15:26,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:26,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:26,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:26,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:26,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:26,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:26,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:26,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:26,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:26,770 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 18:15:26,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:26,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:26,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32365038] [2021-03-25 18:15:26,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:26,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:26,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:26,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:26,771 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 84 [2021-03-25 18:15:26,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 90 transitions, 1154 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:26,771 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:26,771 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 84 [2021-03-25 18:15:26,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:27,037 INFO L129 PetriNetUnfolder]: 74/176 cut-off events. [2021-03-25 18:15:27,037 INFO L130 PetriNetUnfolder]: For 4990/4990 co-relation queries the response was YES. [2021-03-25 18:15:27,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1628 conditions, 176 events. 74/176 cut-off events. For 4990/4990 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 820 event pairs, 1 based on Foata normal form. 3/179 useless extension candidates. Maximal degree in co-relation 1567. Up to 151 conditions per place. [2021-03-25 18:15:27,038 INFO L132 encePairwiseOnDemand]: 52/84 looper letters, 56 selfloop transitions, 33 changer transitions 3/96 dead transitions. [2021-03-25 18:15:27,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 96 transitions, 1566 flow [2021-03-25 18:15:27,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:27,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:27,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 154 transitions. [2021-03-25 18:15:27,039 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18333333333333332 [2021-03-25 18:15:27,039 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 154 transitions. [2021-03-25 18:15:27,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 154 transitions. [2021-03-25 18:15:27,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:27,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 154 transitions. [2021-03-25 18:15:27,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.4) internal successors, (154), 10 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 18:15:27,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:27,040 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:27,040 INFO L185 Difference]: Start difference. First operand has 102 places, 90 transitions, 1154 flow. Second operand 10 states and 154 transitions. [2021-03-25 18:15:27,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 96 transitions, 1566 flow [2021-03-25 18:15:27,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 96 transitions, 1385 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:27,058 INFO L241 Difference]: Finished difference. Result has 114 places, 93 transitions, 1245 flow [2021-03-25 18:15:27,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1245, PETRI_PLACES=114, PETRI_TRANSITIONS=93} [2021-03-25 18:15:27,058 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 99 predicate places. [2021-03-25 18:15:27,058 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:27,059 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 93 transitions, 1245 flow [2021-03-25 18:15:27,059 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 93 transitions, 1245 flow [2021-03-25 18:15:27,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 93 transitions, 1245 flow [2021-03-25 18:15:27,071 INFO L129 PetriNetUnfolder]: 72/167 cut-off events. [2021-03-25 18:15:27,071 INFO L130 PetriNetUnfolder]: For 5061/5071 co-relation queries the response was YES. [2021-03-25 18:15:27,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 167 events. 72/167 cut-off events. For 5061/5071 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 748 event pairs, 0 based on Foata normal form. 2/169 useless extension candidates. Maximal degree in co-relation 1311. Up to 96 conditions per place. [2021-03-25 18:15:27,072 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:27,190 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:27,191 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:27,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 133 [2021-03-25 18:15:27,191 INFO L480 AbstractCegarLoop]: Abstraction has has 108 places, 90 transitions, 1109 flow [2021-03-25 18:15:27,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:27,191 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:27,191 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:27,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-03-25 18:15:27,392 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:27,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:27,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1029949611, now seen corresponding path program 1 times [2021-03-25 18:15:27,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:27,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60802829] [2021-03-25 18:15:27,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:27,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,409 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:27,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:27,442 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:27,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:27,462 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 18:15:27,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60802829] [2021-03-25 18:15:27,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638168745] [2021-03-25 18:15:27,463 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) [2021-03-25 18:15:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:27,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:27,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:27,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:27,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:27,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:27,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:27,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:27,515 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:27,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:27,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:27,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:27,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:27,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:27,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:27,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:27,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:27,532 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 18:15:27,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:27,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:27,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822066476] [2021-03-25 18:15:27,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:27,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:27,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:27,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:27,533 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 87 [2021-03-25 18:15:27,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 90 transitions, 1109 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:27,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:27,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 87 [2021-03-25 18:15:27,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:27,752 INFO L129 PetriNetUnfolder]: 75/173 cut-off events. [2021-03-25 18:15:27,753 INFO L130 PetriNetUnfolder]: For 7373/7378 co-relation queries the response was YES. [2021-03-25 18:15:27,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1653 conditions, 173 events. 75/173 cut-off events. For 7373/7378 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 792 event pairs, 0 based on Foata normal form. 1/174 useless extension candidates. Maximal degree in co-relation 1579. Up to 101 conditions per place. [2021-03-25 18:15:27,756 INFO L132 encePairwiseOnDemand]: 56/87 looper letters, 32 selfloop transitions, 54 changer transitions 2/94 dead transitions. [2021-03-25 18:15:27,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 94 transitions, 1541 flow [2021-03-25 18:15:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:27,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:27,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 128 transitions. [2021-03-25 18:15:27,757 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24521072796934865 [2021-03-25 18:15:27,757 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 128 transitions. [2021-03-25 18:15:27,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 128 transitions. [2021-03-25 18:15:27,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:27,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 128 transitions. [2021-03-25 18:15:27,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:27,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:27,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:27,758 INFO L185 Difference]: Start difference. First operand has 108 places, 90 transitions, 1109 flow. Second operand 6 states and 128 transitions. [2021-03-25 18:15:27,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 94 transitions, 1541 flow [2021-03-25 18:15:27,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 94 transitions, 1372 flow, removed 40 selfloop flow, removed 10 redundant places. [2021-03-25 18:15:27,780 INFO L241 Difference]: Finished difference. Result has 105 places, 92 transitions, 1189 flow [2021-03-25 18:15:27,780 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1189, PETRI_PLACES=105, PETRI_TRANSITIONS=92} [2021-03-25 18:15:27,781 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 90 predicate places. [2021-03-25 18:15:27,781 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:27,781 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 92 transitions, 1189 flow [2021-03-25 18:15:27,781 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 92 transitions, 1189 flow [2021-03-25 18:15:27,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 92 transitions, 1189 flow [2021-03-25 18:15:27,793 INFO L129 PetriNetUnfolder]: 74/169 cut-off events. [2021-03-25 18:15:27,793 INFO L130 PetriNetUnfolder]: For 6106/6157 co-relation queries the response was YES. [2021-03-25 18:15:27,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 169 events. 74/169 cut-off events. For 6106/6157 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 751 event pairs, 0 based on Foata normal form. 2/171 useless extension candidates. Maximal degree in co-relation 1296. Up to 98 conditions per place. [2021-03-25 18:15:27,794 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:27,835 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:27,835 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:27,835 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 18:15:27,836 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 92 transitions, 1190 flow [2021-03-25 18:15:27,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:27,836 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:27,836 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:28,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-03-25 18:15:28,044 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:28,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:28,044 INFO L82 PathProgramCache]: Analyzing trace with hash 656045653, now seen corresponding path program 1 times [2021-03-25 18:15:28,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:28,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004369674] [2021-03-25 18:15:28,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:28,053 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:28,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:28,067 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:28,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:28,079 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:28,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:28,086 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 18:15:28,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004369674] [2021-03-25 18:15:28,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723235509] [2021-03-25 18:15:28,086 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 18:15:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:28,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:28,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:28,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,119 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:28,119 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-03-25 18:15:28,120 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-03-25 18:15:28,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:28,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:28,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:28,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:28,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:28,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:28,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:28,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:28,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:28,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,138 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.4 percent of original size 39 [2021-03-25 18:15:28,138 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.3 percent of original size [2021-03-25 18:15:28,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 18:15:28,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 18:15:28,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 18:15:28,155 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-03-25 18:15:28,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 18:15:28,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:28,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:28,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:28,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:28,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:28,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:28,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:28,181 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 18:15:28,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:28,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:28,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76813595] [2021-03-25 18:15:28,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:28,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:28,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:28,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:28,182 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 88 [2021-03-25 18:15:28,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 92 transitions, 1190 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:28,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:28,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 88 [2021-03-25 18:15:28,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:28,413 INFO L129 PetriNetUnfolder]: 76/180 cut-off events. [2021-03-25 18:15:28,413 INFO L130 PetriNetUnfolder]: For 5390/5419 co-relation queries the response was YES. [2021-03-25 18:15:28,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 180 events. 76/180 cut-off events. For 5390/5419 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 839 event pairs, 1 based on Foata normal form. 32/212 useless extension candidates. Maximal degree in co-relation 1617. Up to 155 conditions per place. [2021-03-25 18:15:28,414 INFO L132 encePairwiseOnDemand]: 55/88 looper letters, 57 selfloop transitions, 34 changer transitions 3/98 dead transitions. [2021-03-25 18:15:28,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 98 transitions, 1612 flow [2021-03-25 18:15:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2021-03-25 18:15:28,415 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17613636363636365 [2021-03-25 18:15:28,415 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 155 transitions. [2021-03-25 18:15:28,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 155 transitions. [2021-03-25 18:15:28,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:28,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 155 transitions. [2021-03-25 18:15:28,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.5) internal successors, (155), 10 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 18:15:28,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 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 18:15:28,417 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 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 18:15:28,417 INFO L185 Difference]: Start difference. First operand has 104 places, 92 transitions, 1190 flow. Second operand 10 states and 155 transitions. [2021-03-25 18:15:28,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 98 transitions, 1612 flow [2021-03-25 18:15:28,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 98 transitions, 1424 flow, removed 56 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:28,437 INFO L241 Difference]: Finished difference. Result has 116 places, 95 transitions, 1282 flow [2021-03-25 18:15:28,437 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=1002, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1282, PETRI_PLACES=116, PETRI_TRANSITIONS=95} [2021-03-25 18:15:28,437 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 101 predicate places. [2021-03-25 18:15:28,438 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:28,438 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 95 transitions, 1282 flow [2021-03-25 18:15:28,438 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 95 transitions, 1282 flow [2021-03-25 18:15:28,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 95 transitions, 1282 flow [2021-03-25 18:15:28,454 INFO L129 PetriNetUnfolder]: 74/171 cut-off events. [2021-03-25 18:15:28,454 INFO L130 PetriNetUnfolder]: For 5395/5408 co-relation queries the response was YES. [2021-03-25 18:15:28,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 171 events. 74/171 cut-off events. For 5395/5408 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 757 event pairs, 0 based on Foata normal form. 2/173 useless extension candidates. Maximal degree in co-relation 1354. Up to 100 conditions per place. [2021-03-25 18:15:28,456 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:28,575 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:28,575 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:28,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-03-25 18:15:28,575 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 92 transitions, 1142 flow [2021-03-25 18:15:28,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:28,575 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:28,575 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:28,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:28,776 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:28,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:28,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1144379725, now seen corresponding path program 1 times [2021-03-25 18:15:28,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:28,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391574912] [2021-03-25 18:15:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:28,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,793 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:28,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:28,822 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:28,837 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 18:15:28,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391574912] [2021-03-25 18:15:28,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021692785] [2021-03-25 18:15:28,837 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 18:15:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:28,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:28,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:28,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:28,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:28,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:28,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:28,877 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:28,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:28,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:28,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:28,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:28,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:28,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:28,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:28,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:28,896 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 18:15:28,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:28,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:28,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745731919] [2021-03-25 18:15:28,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:28,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:28,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:28,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:28,897 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 91 [2021-03-25 18:15:28,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 92 transitions, 1142 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:28,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:28,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 91 [2021-03-25 18:15:28,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:29,105 INFO L129 PetriNetUnfolder]: 76/176 cut-off events. [2021-03-25 18:15:29,105 INFO L130 PetriNetUnfolder]: For 6606/6611 co-relation queries the response was YES. [2021-03-25 18:15:29,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1670 conditions, 176 events. 76/176 cut-off events. For 6606/6611 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 816 event pairs, 0 based on Foata normal form. 1/177 useless extension candidates. Maximal degree in co-relation 1595. Up to 104 conditions per place. [2021-03-25 18:15:29,107 INFO L132 encePairwiseOnDemand]: 59/91 looper letters, 32 selfloop transitions, 56 changer transitions 2/96 dead transitions. [2021-03-25 18:15:29,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 96 transitions, 1586 flow [2021-03-25 18:15:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 129 transitions. [2021-03-25 18:15:29,108 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23626373626373626 [2021-03-25 18:15:29,108 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 129 transitions. [2021-03-25 18:15:29,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 129 transitions. [2021-03-25 18:15:29,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:29,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 129 transitions. [2021-03-25 18:15:29,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.5) internal successors, (129), 6 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 18:15:29,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:29,109 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:29,109 INFO L185 Difference]: Start difference. First operand has 110 places, 92 transitions, 1142 flow. Second operand 6 states and 129 transitions. [2021-03-25 18:15:29,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 96 transitions, 1586 flow [2021-03-25 18:15:29,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 96 transitions, 1412 flow, removed 41 selfloop flow, removed 10 redundant places. [2021-03-25 18:15:29,126 INFO L241 Difference]: Finished difference. Result has 107 places, 94 transitions, 1225 flow [2021-03-25 18:15:29,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=972, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1225, PETRI_PLACES=107, PETRI_TRANSITIONS=94} [2021-03-25 18:15:29,126 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 92 predicate places. [2021-03-25 18:15:29,126 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:29,127 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 94 transitions, 1225 flow [2021-03-25 18:15:29,127 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 94 transitions, 1225 flow [2021-03-25 18:15:29,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 94 transitions, 1225 flow [2021-03-25 18:15:29,140 INFO L129 PetriNetUnfolder]: 75/172 cut-off events. [2021-03-25 18:15:29,140 INFO L130 PetriNetUnfolder]: For 6249/6257 co-relation queries the response was YES. [2021-03-25 18:15:29,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1395 conditions, 172 events. 75/172 cut-off events. For 6249/6257 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 788 event pairs, 1 based on Foata normal form. 2/174 useless extension candidates. Maximal degree in co-relation 1337. Up to 102 conditions per place. [2021-03-25 18:15:29,142 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:29,184 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:29,184 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:29,184 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 18:15:29,185 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 94 transitions, 1226 flow [2021-03-25 18:15:29,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:29,185 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:29,185 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:29,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-03-25 18:15:29,385 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:29,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:29,385 INFO L82 PathProgramCache]: Analyzing trace with hash 721493597, now seen corresponding path program 1 times [2021-03-25 18:15:29,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:29,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085129283] [2021-03-25 18:15:29,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:29,400 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:29,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:29,416 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:29,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:29,428 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:29,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:29,437 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 18:15:29,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085129283] [2021-03-25 18:15:29,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386194161] [2021-03-25 18:15:29,437 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 18:15:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:29,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:29,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:29,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:29,466 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:29,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:29,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:29,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:29,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:29,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:29,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:29,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:29,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:29,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:29,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:29,502 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 18:15:29,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:29,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:29,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:29,525 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 18:15:29,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:29,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:29,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390765862] [2021-03-25 18:15:29,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:29,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:29,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:29,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:29,526 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 92 [2021-03-25 18:15:29,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 94 transitions, 1226 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:29,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:29,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 92 [2021-03-25 18:15:29,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:29,793 INFO L129 PetriNetUnfolder]: 78/184 cut-off events. [2021-03-25 18:15:29,793 INFO L130 PetriNetUnfolder]: For 5630/5630 co-relation queries the response was YES. [2021-03-25 18:15:29,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 184 events. 78/184 cut-off events. For 5630/5630 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 867 event pairs, 1 based on Foata normal form. 3/187 useless extension candidates. Maximal degree in co-relation 1667. Up to 159 conditions per place. [2021-03-25 18:15:29,795 INFO L132 encePairwiseOnDemand]: 58/92 looper letters, 58 selfloop transitions, 35 changer transitions 3/100 dead transitions. [2021-03-25 18:15:29,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 100 transitions, 1658 flow [2021-03-25 18:15:29,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:29,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:29,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 156 transitions. [2021-03-25 18:15:29,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16956521739130434 [2021-03-25 18:15:29,797 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 156 transitions. [2021-03-25 18:15:29,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 156 transitions. [2021-03-25 18:15:29,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:29,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 156 transitions. [2021-03-25 18:15:29,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.6) internal successors, (156), 10 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 18:15:29,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:29,798 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:29,798 INFO L185 Difference]: Start difference. First operand has 106 places, 94 transitions, 1226 flow. Second operand 10 states and 156 transitions. [2021-03-25 18:15:29,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 100 transitions, 1658 flow [2021-03-25 18:15:29,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 100 transitions, 1432 flow, removed 58 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:29,825 INFO L241 Difference]: Finished difference. Result has 117 places, 97 transitions, 1288 flow [2021-03-25 18:15:29,825 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=1000, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1288, PETRI_PLACES=117, PETRI_TRANSITIONS=97} [2021-03-25 18:15:29,825 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 102 predicate places. [2021-03-25 18:15:29,825 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:29,825 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 97 transitions, 1288 flow [2021-03-25 18:15:29,825 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 97 transitions, 1288 flow [2021-03-25 18:15:29,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 97 transitions, 1288 flow [2021-03-25 18:15:29,841 INFO L129 PetriNetUnfolder]: 76/175 cut-off events. [2021-03-25 18:15:29,842 INFO L130 PetriNetUnfolder]: For 5594/5602 co-relation queries the response was YES. [2021-03-25 18:15:29,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1467 conditions, 175 events. 76/175 cut-off events. For 5594/5602 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 809 event pairs, 0 based on Foata normal form. 2/177 useless extension candidates. Maximal degree in co-relation 1396. Up to 104 conditions per place. [2021-03-25 18:15:29,843 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:29,978 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:29,978 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:29,978 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 153 [2021-03-25 18:15:29,978 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 94 transitions, 1144 flow [2021-03-25 18:15:29,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:29,979 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:29,979 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:30,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:30,179 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:30,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:30,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1258982819, now seen corresponding path program 1 times [2021-03-25 18:15:30,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:30,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687927277] [2021-03-25 18:15:30,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:30,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,198 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:30,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:30,223 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:30,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:30,238 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 18:15:30,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687927277] [2021-03-25 18:15:30,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952426425] [2021-03-25 18:15:30,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:15:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:30,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:30,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:30,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:30,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:30,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:30,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:30,278 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:30,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:30,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:30,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:30,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:30,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:30,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:30,292 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 18:15:30,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:30,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:30,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266594442] [2021-03-25 18:15:30,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:30,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:30,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:30,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:30,293 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 95 [2021-03-25 18:15:30,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 94 transitions, 1144 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:30,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:30,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 95 [2021-03-25 18:15:30,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:30,484 INFO L129 PetriNetUnfolder]: 79/181 cut-off events. [2021-03-25 18:15:30,485 INFO L130 PetriNetUnfolder]: For 8182/8187 co-relation queries the response was YES. [2021-03-25 18:15:30,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 181 events. 79/181 cut-off events. For 8182/8187 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 843 event pairs, 0 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 1678. Up to 108 conditions per place. [2021-03-25 18:15:30,486 INFO L132 encePairwiseOnDemand]: 62/95 looper letters, 32 selfloop transitions, 58 changer transitions 2/98 dead transitions. [2021-03-25 18:15:30,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 98 transitions, 1600 flow [2021-03-25 18:15:30,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:30,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2021-03-25 18:15:30,487 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22807017543859648 [2021-03-25 18:15:30,487 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 130 transitions. [2021-03-25 18:15:30,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 130 transitions. [2021-03-25 18:15:30,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:30,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 130 transitions. [2021-03-25 18:15:30,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:30,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:30,488 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:30,488 INFO L185 Difference]: Start difference. First operand has 111 places, 94 transitions, 1144 flow. Second operand 6 states and 130 transitions. [2021-03-25 18:15:30,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 98 transitions, 1600 flow [2021-03-25 18:15:30,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 98 transitions, 1452 flow, removed 42 selfloop flow, removed 9 redundant places. [2021-03-25 18:15:30,506 INFO L241 Difference]: Finished difference. Result has 109 places, 96 transitions, 1261 flow [2021-03-25 18:15:30,506 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1000, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1261, PETRI_PLACES=109, PETRI_TRANSITIONS=96} [2021-03-25 18:15:30,506 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 94 predicate places. [2021-03-25 18:15:30,506 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:30,506 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 96 transitions, 1261 flow [2021-03-25 18:15:30,507 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 96 transitions, 1261 flow [2021-03-25 18:15:30,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 96 transitions, 1261 flow [2021-03-25 18:15:30,519 INFO L129 PetriNetUnfolder]: 77/176 cut-off events. [2021-03-25 18:15:30,519 INFO L130 PetriNetUnfolder]: For 6451/6451 co-relation queries the response was YES. [2021-03-25 18:15:30,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 176 events. 77/176 cut-off events. For 6451/6451 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 814 event pairs, 1 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 1379. Up to 106 conditions per place. [2021-03-25 18:15:30,521 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:30,563 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:30,563 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:30,563 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 18:15:30,564 INFO L480 AbstractCegarLoop]: Abstraction has has 108 places, 96 transitions, 1262 flow [2021-03-25 18:15:30,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:30,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:30,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:30,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-03-25 18:15:30,768 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:30,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:30,768 INFO L82 PathProgramCache]: Analyzing trace with hash -140227955, now seen corresponding path program 1 times [2021-03-25 18:15:30,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:30,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924692412] [2021-03-25 18:15:30,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:30,777 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:30,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:30,789 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:30,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:30,798 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:30,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:30,804 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 18:15:30,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924692412] [2021-03-25 18:15:30,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132707321] [2021-03-25 18:15:30,805 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 18:15:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:30,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:30,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:30,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:30,829 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:30,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:30,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:30,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:30,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:30,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:30,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:30,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:30,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:30,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:30,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:30,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,847 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size 39 [2021-03-25 18:15:30,847 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-03-25 18:15:30,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 18:15:30,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 18:15:30,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 18:15:30,882 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 18:15:30,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 18:15:30,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:30,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 18:15:30,917 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 18:15:30,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:30,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:30,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313463365] [2021-03-25 18:15:30,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:30,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:30,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:30,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:30,918 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 96 [2021-03-25 18:15:30,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 96 transitions, 1262 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:30,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:30,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 96 [2021-03-25 18:15:30,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:31,124 INFO L129 PetriNetUnfolder]: 80/188 cut-off events. [2021-03-25 18:15:31,124 INFO L130 PetriNetUnfolder]: For 5965/5965 co-relation queries the response was YES. [2021-03-25 18:15:31,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1781 conditions, 188 events. 80/188 cut-off events. For 5965/5965 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 889 event pairs, 1 based on Foata normal form. 3/191 useless extension candidates. Maximal degree in co-relation 1717. Up to 163 conditions per place. [2021-03-25 18:15:31,126 INFO L132 encePairwiseOnDemand]: 61/96 looper letters, 59 selfloop transitions, 36 changer transitions 3/102 dead transitions. [2021-03-25 18:15:31,126 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 102 transitions, 1704 flow [2021-03-25 18:15:31,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:31,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:31,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 157 transitions. [2021-03-25 18:15:31,127 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16354166666666667 [2021-03-25 18:15:31,127 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 157 transitions. [2021-03-25 18:15:31,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 157 transitions. [2021-03-25 18:15:31,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:31,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 157 transitions. [2021-03-25 18:15:31,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.7) internal successors, (157), 10 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 18:15:31,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 96.0) internal successors, (1056), 11 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:31,129 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 96.0) internal successors, (1056), 11 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:31,129 INFO L185 Difference]: Start difference. First operand has 108 places, 96 transitions, 1262 flow. Second operand 10 states and 157 transitions. [2021-03-25 18:15:31,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 102 transitions, 1704 flow [2021-03-25 18:15:31,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 102 transitions, 1502 flow, removed 60 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:31,149 INFO L241 Difference]: Finished difference. Result has 120 places, 99 transitions, 1356 flow [2021-03-25 18:15:31,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1356, PETRI_PLACES=120, PETRI_TRANSITIONS=99} [2021-03-25 18:15:31,149 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 105 predicate places. [2021-03-25 18:15:31,149 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:31,150 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 99 transitions, 1356 flow [2021-03-25 18:15:31,150 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 99 transitions, 1356 flow [2021-03-25 18:15:31,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 99 transitions, 1356 flow [2021-03-25 18:15:31,162 INFO L129 PetriNetUnfolder]: 78/179 cut-off events. [2021-03-25 18:15:31,162 INFO L130 PetriNetUnfolder]: For 5953/5958 co-relation queries the response was YES. [2021-03-25 18:15:31,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 179 events. 78/179 cut-off events. For 5953/5958 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 848 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 1440. Up to 108 conditions per place. [2021-03-25 18:15:31,163 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:31,282 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:31,282 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:31,283 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 134 [2021-03-25 18:15:31,283 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 96 transitions, 1208 flow [2021-03-25 18:15:31,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:31,283 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:31,283 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:31,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-03-25 18:15:31,483 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:31,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:31,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1373412933, now seen corresponding path program 1 times [2021-03-25 18:15:31,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:31,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941854788] [2021-03-25 18:15:31,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:31,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,498 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:31,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:31,528 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:31,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:31,542 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 18:15:31,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941854788] [2021-03-25 18:15:31,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927879476] [2021-03-25 18:15:31,542 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 18:15:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:31,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:31,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:31,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:31,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:31,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:31,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:31,597 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:31,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:31,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:31,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:31,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:31,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:31,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:31,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:31,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:31,611 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 18:15:31,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:31,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:31,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101463106] [2021-03-25 18:15:31,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:31,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:31,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:31,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:31,612 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 99 [2021-03-25 18:15:31,612 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 96 transitions, 1208 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:31,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:31,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 99 [2021-03-25 18:15:31,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:31,813 INFO L129 PetriNetUnfolder]: 81/185 cut-off events. [2021-03-25 18:15:31,813 INFO L130 PetriNetUnfolder]: For 8789/8794 co-relation queries the response was YES. [2021-03-25 18:15:31,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1806 conditions, 185 events. 81/185 cut-off events. For 8789/8794 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 869 event pairs, 0 based on Foata normal form. 1/186 useless extension candidates. Maximal degree in co-relation 1729. Up to 112 conditions per place. [2021-03-25 18:15:31,815 INFO L132 encePairwiseOnDemand]: 65/99 looper letters, 32 selfloop transitions, 60 changer transitions 2/100 dead transitions. [2021-03-25 18:15:31,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 100 transitions, 1676 flow [2021-03-25 18:15:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:31,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 131 transitions. [2021-03-25 18:15:31,815 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22053872053872053 [2021-03-25 18:15:31,815 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 131 transitions. [2021-03-25 18:15:31,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 131 transitions. [2021-03-25 18:15:31,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:31,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 131 transitions. [2021-03-25 18:15:31,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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 18:15:31,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:31,816 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:31,816 INFO L185 Difference]: Start difference. First operand has 114 places, 96 transitions, 1208 flow. Second operand 6 states and 131 transitions. [2021-03-25 18:15:31,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 100 transitions, 1676 flow [2021-03-25 18:15:31,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 100 transitions, 1492 flow, removed 43 selfloop flow, removed 10 redundant places. [2021-03-25 18:15:31,832 INFO L241 Difference]: Finished difference. Result has 111 places, 98 transitions, 1297 flow [2021-03-25 18:15:31,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1297, PETRI_PLACES=111, PETRI_TRANSITIONS=98} [2021-03-25 18:15:31,832 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 96 predicate places. [2021-03-25 18:15:31,832 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:31,832 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 98 transitions, 1297 flow [2021-03-25 18:15:31,832 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 98 transitions, 1297 flow [2021-03-25 18:15:31,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 98 transitions, 1297 flow [2021-03-25 18:15:31,844 INFO L129 PetriNetUnfolder]: 79/180 cut-off events. [2021-03-25 18:15:31,845 INFO L130 PetriNetUnfolder]: For 6856/6857 co-relation queries the response was YES. [2021-03-25 18:15:31,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1481 conditions, 180 events. 79/180 cut-off events. For 6856/6857 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 845 event pairs, 1 based on Foata normal form. 1/181 useless extension candidates. Maximal degree in co-relation 1421. Up to 110 conditions per place. [2021-03-25 18:15:31,846 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:31,887 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:31,888 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:31,888 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-25 18:15:31,888 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 98 transitions, 1298 flow [2021-03-25 18:15:31,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:31,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:31,888 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:32,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:32,089 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:32,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:32,089 INFO L82 PathProgramCache]: Analyzing trace with hash -136533871, now seen corresponding path program 1 times [2021-03-25 18:15:32,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:32,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667526762] [2021-03-25 18:15:32,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:32,095 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:32,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:32,107 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:32,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:32,116 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:32,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:32,122 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 18:15:32,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667526762] [2021-03-25 18:15:32,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575307635] [2021-03-25 18:15:32,122 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) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:32,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:32,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:32,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,147 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:32,147 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-03-25 18:15:32,148 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-03-25 18:15:32,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:32,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:32,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:32,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:32,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:32,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:32,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:32,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:32,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:32,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,164 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.1 percent of original size 49 [2021-03-25 18:15:32,165 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size [2021-03-25 18:15:32,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 18:15:32,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 18:15:32,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 18:15:32,187 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.9 percent of original size [2021-03-25 18:15:32,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 18:15:32,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:32,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 18:15:32,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-25 18:15:32,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:32,232 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 18:15:32,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:32,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:32,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68677036] [2021-03-25 18:15:32,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:32,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:32,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:32,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:32,233 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 100 [2021-03-25 18:15:32,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 98 transitions, 1298 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:32,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:32,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 100 [2021-03-25 18:15:32,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:32,468 INFO L129 PetriNetUnfolder]: 82/189 cut-off events. [2021-03-25 18:15:32,468 INFO L130 PetriNetUnfolder]: For 6308/6308 co-relation queries the response was YES. [2021-03-25 18:15:32,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1787 conditions, 189 events. 82/189 cut-off events. For 6308/6308 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 887 event pairs, 1 based on Foata normal form. 2/191 useless extension candidates. Maximal degree in co-relation 1722. Up to 167 conditions per place. [2021-03-25 18:15:32,470 INFO L132 encePairwiseOnDemand]: 64/100 looper letters, 60 selfloop transitions, 36 changer transitions 2/102 dead transitions. [2021-03-25 18:15:32,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 102 transitions, 1662 flow [2021-03-25 18:15:32,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:32,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 135 transitions. [2021-03-25 18:15:32,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16875 [2021-03-25 18:15:32,471 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 135 transitions. [2021-03-25 18:15:32,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 135 transitions. [2021-03-25 18:15:32,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:32,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 135 transitions. [2021-03-25 18:15:32,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 16.875) internal successors, (135), 8 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 18:15:32,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 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 18:15:32,472 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 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 18:15:32,472 INFO L185 Difference]: Start difference. First operand has 110 places, 98 transitions, 1298 flow. Second operand 8 states and 135 transitions. [2021-03-25 18:15:32,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 102 transitions, 1662 flow [2021-03-25 18:15:32,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 102 transitions, 1453 flow, removed 62 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:32,492 INFO L241 Difference]: Finished difference. Result has 118 places, 100 transitions, 1315 flow [2021-03-25 18:15:32,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1315, PETRI_PLACES=118, PETRI_TRANSITIONS=100} [2021-03-25 18:15:32,493 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 103 predicate places. [2021-03-25 18:15:32,493 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:32,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 100 transitions, 1315 flow [2021-03-25 18:15:32,493 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 100 transitions, 1315 flow [2021-03-25 18:15:32,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 100 transitions, 1315 flow [2021-03-25 18:15:32,505 INFO L129 PetriNetUnfolder]: 80/182 cut-off events. [2021-03-25 18:15:32,505 INFO L130 PetriNetUnfolder]: For 6293/6344 co-relation queries the response was YES. [2021-03-25 18:15:32,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1482 conditions, 182 events. 80/182 cut-off events. For 6293/6344 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 845 event pairs, 0 based on Foata normal form. 1/183 useless extension candidates. Maximal degree in co-relation 1415. Up to 111 conditions per place. [2021-03-25 18:15:32,507 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:32,592 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:32,592 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:32,592 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 99 [2021-03-25 18:15:32,592 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 98 transitions, 1235 flow [2021-03-25 18:15:32,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:32,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:32,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:32,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-03-25 18:15:32,793 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:32,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:32,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1487929537, now seen corresponding path program 1 times [2021-03-25 18:15:32,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:32,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933419819] [2021-03-25 18:15:32,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:32,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,812 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:32,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:32,836 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:32,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:32,847 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 18:15:32,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933419819] [2021-03-25 18:15:32,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627377743] [2021-03-25 18:15:32,847 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 18:15:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:32,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:32,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:32,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:32,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:32,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:32,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:32,892 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:32,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:32,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:32,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:32,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:32,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:32,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:32,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:32,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:32,906 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 18:15:32,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:32,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:32,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191079510] [2021-03-25 18:15:32,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:32,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:32,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:32,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:32,907 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 102 [2021-03-25 18:15:32,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 98 transitions, 1235 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:32,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:32,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 102 [2021-03-25 18:15:32,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:33,101 INFO L129 PetriNetUnfolder]: 83/189 cut-off events. [2021-03-25 18:15:33,101 INFO L130 PetriNetUnfolder]: For 9018/9023 co-relation queries the response was YES. [2021-03-25 18:15:33,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1817 conditions, 189 events. 83/189 cut-off events. For 9018/9023 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 886 event pairs, 0 based on Foata normal form. 1/190 useless extension candidates. Maximal degree in co-relation 1745. Up to 116 conditions per place. [2021-03-25 18:15:33,103 INFO L132 encePairwiseOnDemand]: 67/102 looper letters, 32 selfloop transitions, 62 changer transitions 2/102 dead transitions. [2021-03-25 18:15:33,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 102 transitions, 1715 flow [2021-03-25 18:15:33,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:33,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2021-03-25 18:15:33,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21568627450980393 [2021-03-25 18:15:33,105 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 132 transitions. [2021-03-25 18:15:33,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 132 transitions. [2021-03-25 18:15:33,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:33,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 132 transitions. [2021-03-25 18:15:33,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.0) internal successors, (132), 6 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 18:15:33,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:33,106 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:33,106 INFO L185 Difference]: Start difference. First operand has 114 places, 98 transitions, 1235 flow. Second operand 6 states and 132 transitions. [2021-03-25 18:15:33,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 102 transitions, 1715 flow [2021-03-25 18:15:33,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 102 transitions, 1532 flow, removed 41 selfloop flow, removed 8 redundant places. [2021-03-25 18:15:33,139 INFO L241 Difference]: Finished difference. Result has 113 places, 100 transitions, 1333 flow [2021-03-25 18:15:33,140 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=1056, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1333, PETRI_PLACES=113, PETRI_TRANSITIONS=100} [2021-03-25 18:15:33,140 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 98 predicate places. [2021-03-25 18:15:33,140 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:33,140 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 100 transitions, 1333 flow [2021-03-25 18:15:33,140 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 100 transitions, 1333 flow [2021-03-25 18:15:33,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 100 transitions, 1333 flow [2021-03-25 18:15:33,158 INFO L129 PetriNetUnfolder]: 82/185 cut-off events. [2021-03-25 18:15:33,158 INFO L130 PetriNetUnfolder]: For 8159/8159 co-relation queries the response was YES. [2021-03-25 18:15:33,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1561 conditions, 185 events. 82/185 cut-off events. For 8159/8159 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 855 event pairs, 1 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 1500. Up to 114 conditions per place. [2021-03-25 18:15:33,159 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:33,201 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:33,201 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:33,202 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-25 18:15:33,202 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 100 transitions, 1334 flow [2021-03-25 18:15:33,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:33,202 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:33,202 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:33,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:33,402 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:33,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:33,403 INFO L82 PathProgramCache]: Analyzing trace with hash -133763308, now seen corresponding path program 1 times [2021-03-25 18:15:33,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:33,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358698413] [2021-03-25 18:15:33,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:33,416 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:33,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:33,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:33,432 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:33,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:33,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:33,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:33,448 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 18:15:33,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358698413] [2021-03-25 18:15:33,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053570079] [2021-03-25 18:15:33,449 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 18:15:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:33,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:33,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:33,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:33,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:33,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:33,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:33,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:33,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:33,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:33,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:33,470 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:33,470 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-03-25 18:15:33,470 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-03-25 18:15:33,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:33,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:33,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:33,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:33,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:33,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:33,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:33,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:33,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:33,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,486 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 49 [2021-03-25 18:15:33,487 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.2 percent of original size [2021-03-25 18:15:33,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:33,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:33,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:33,504 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:15:33,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:33,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:33,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:33,533 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 18:15:33,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:33,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:33,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242271329] [2021-03-25 18:15:33,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:33,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:33,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:33,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:33,533 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 103 [2021-03-25 18:15:33,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 100 transitions, 1334 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:33,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:33,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 103 [2021-03-25 18:15:33,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:33,765 INFO L129 PetriNetUnfolder]: 84/193 cut-off events. [2021-03-25 18:15:33,765 INFO L130 PetriNetUnfolder]: For 6663/6663 co-relation queries the response was YES. [2021-03-25 18:15:33,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1837 conditions, 193 events. 84/193 cut-off events. For 6663/6663 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 913 event pairs, 1 based on Foata normal form. 2/195 useless extension candidates. Maximal degree in co-relation 1771. Up to 171 conditions per place. [2021-03-25 18:15:33,767 INFO L132 encePairwiseOnDemand]: 66/103 looper letters, 61 selfloop transitions, 37 changer transitions 2/104 dead transitions. [2021-03-25 18:15:33,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 104 transitions, 1706 flow [2021-03-25 18:15:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:33,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:33,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 136 transitions. [2021-03-25 18:15:33,768 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1650485436893204 [2021-03-25 18:15:33,768 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 136 transitions. [2021-03-25 18:15:33,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 136 transitions. [2021-03-25 18:15:33,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:33,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 136 transitions. [2021-03-25 18:15:33,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:33,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 103.0) internal successors, (927), 9 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:33,769 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 103.0) internal successors, (927), 9 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:33,769 INFO L185 Difference]: Start difference. First operand has 112 places, 100 transitions, 1334 flow. Second operand 8 states and 136 transitions. [2021-03-25 18:15:33,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 104 transitions, 1706 flow [2021-03-25 18:15:33,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 104 transitions, 1456 flow, removed 64 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:33,789 INFO L241 Difference]: Finished difference. Result has 119 places, 102 transitions, 1316 flow [2021-03-25 18:15:33,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1316, PETRI_PLACES=119, PETRI_TRANSITIONS=102} [2021-03-25 18:15:33,790 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 104 predicate places. [2021-03-25 18:15:33,790 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:33,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 102 transitions, 1316 flow [2021-03-25 18:15:33,790 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 102 transitions, 1316 flow [2021-03-25 18:15:33,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 102 transitions, 1316 flow [2021-03-25 18:15:33,802 INFO L129 PetriNetUnfolder]: 82/186 cut-off events. [2021-03-25 18:15:33,802 INFO L130 PetriNetUnfolder]: For 6547/6600 co-relation queries the response was YES. [2021-03-25 18:15:33,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1523 conditions, 186 events. 82/186 cut-off events. For 6547/6600 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 871 event pairs, 0 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 1455. Up to 115 conditions per place. [2021-03-25 18:15:33,804 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:33,885 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:33,885 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:33,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-03-25 18:15:33,885 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 100 transitions, 1234 flow [2021-03-25 18:15:33,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:33,885 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:33,885 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:34,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-03-25 18:15:34,099 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:34,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:34,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1573816990, now seen corresponding path program 1 times [2021-03-25 18:15:34,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:34,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120032320] [2021-03-25 18:15:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:34,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,113 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:34,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:34,140 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:34,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:34,155 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 18:15:34,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120032320] [2021-03-25 18:15:34,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978699899] [2021-03-25 18:15:34,156 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 18:15:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:34,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:34,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:34,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:34,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:34,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:34,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:34,194 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:34,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:34,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:34,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:34,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:34,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:34,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:34,210 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 18:15:34,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:34,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:34,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214125364] [2021-03-25 18:15:34,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:34,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:34,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:34,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:34,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 105 [2021-03-25 18:15:34,211 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 100 transitions, 1234 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:34,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:34,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 105 [2021-03-25 18:15:34,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:34,419 INFO L129 PetriNetUnfolder]: 85/193 cut-off events. [2021-03-25 18:15:34,419 INFO L130 PetriNetUnfolder]: For 9391/9396 co-relation queries the response was YES. [2021-03-25 18:15:34,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1866 conditions, 193 events. 85/193 cut-off events. For 9391/9396 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 916 event pairs, 0 based on Foata normal form. 1/194 useless extension candidates. Maximal degree in co-relation 1793. Up to 120 conditions per place. [2021-03-25 18:15:34,420 INFO L132 encePairwiseOnDemand]: 69/105 looper letters, 32 selfloop transitions, 64 changer transitions 2/104 dead transitions. [2021-03-25 18:15:34,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 104 transitions, 1726 flow [2021-03-25 18:15:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2021-03-25 18:15:34,421 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2111111111111111 [2021-03-25 18:15:34,421 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 133 transitions. [2021-03-25 18:15:34,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 133 transitions. [2021-03-25 18:15:34,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:34,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 133 transitions. [2021-03-25 18:15:34,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 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 18:15:34,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:34,423 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:34,423 INFO L185 Difference]: Start difference. First operand has 115 places, 100 transitions, 1234 flow. Second operand 6 states and 133 transitions. [2021-03-25 18:15:34,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 104 transitions, 1726 flow [2021-03-25 18:15:34,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 104 transitions, 1572 flow, removed 42 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:34,443 INFO L241 Difference]: Finished difference. Result has 115 places, 102 transitions, 1369 flow [2021-03-25 18:15:34,443 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1369, PETRI_PLACES=115, PETRI_TRANSITIONS=102} [2021-03-25 18:15:34,443 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 100 predicate places. [2021-03-25 18:15:34,443 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:34,443 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 102 transitions, 1369 flow [2021-03-25 18:15:34,443 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 102 transitions, 1369 flow [2021-03-25 18:15:34,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 102 transitions, 1369 flow [2021-03-25 18:15:34,460 INFO L129 PetriNetUnfolder]: 83/188 cut-off events. [2021-03-25 18:15:34,461 INFO L130 PetriNetUnfolder]: For 7708/7710 co-relation queries the response was YES. [2021-03-25 18:15:34,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1567 conditions, 188 events. 83/188 cut-off events. For 7708/7710 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 899 event pairs, 1 based on Foata normal form. 2/190 useless extension candidates. Maximal degree in co-relation 1505. Up to 118 conditions per place. [2021-03-25 18:15:34,462 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:34,509 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:34,509 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:34,509 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-25 18:15:34,509 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 102 transitions, 1370 flow [2021-03-25 18:15:34,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:34,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:34,509 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:34,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-03-25 18:15:34,710 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:34,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:34,710 INFO L82 PathProgramCache]: Analyzing trace with hash -130992745, now seen corresponding path program 1 times [2021-03-25 18:15:34,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:34,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276367902] [2021-03-25 18:15:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:34,723 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:34,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:34,737 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:34,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:34,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:34,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:34,755 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 18:15:34,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276367902] [2021-03-25 18:15:34,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100141090] [2021-03-25 18:15:34,756 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 18:15:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:34,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:34,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:34,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:34,799 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:34,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:34,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:34,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:34,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:34,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:34,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:34,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:34,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:34,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:34,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:34,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,821 INFO L147 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size 49 [2021-03-25 18:15:34,822 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 18:15:34,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:34,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:34,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:34,845 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:15:34,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:34,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:34,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:34,884 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 18:15:34,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:34,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:34,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43803748] [2021-03-25 18:15:34,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:34,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:34,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:34,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:34,885 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 106 [2021-03-25 18:15:34,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 102 transitions, 1370 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:34,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:34,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 106 [2021-03-25 18:15:34,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:35,203 INFO L129 PetriNetUnfolder]: 86/197 cut-off events. [2021-03-25 18:15:35,204 INFO L130 PetriNetUnfolder]: For 7028/7028 co-relation queries the response was YES. [2021-03-25 18:15:35,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1887 conditions, 197 events. 86/197 cut-off events. For 7028/7028 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 938 event pairs, 1 based on Foata normal form. 2/199 useless extension candidates. Maximal degree in co-relation 1820. Up to 175 conditions per place. [2021-03-25 18:15:35,206 INFO L132 encePairwiseOnDemand]: 68/106 looper letters, 62 selfloop transitions, 38 changer transitions 2/106 dead transitions. [2021-03-25 18:15:35,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 106 transitions, 1750 flow [2021-03-25 18:15:35,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:35,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:35,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2021-03-25 18:15:35,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1615566037735849 [2021-03-25 18:15:35,208 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 137 transitions. [2021-03-25 18:15:35,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 137 transitions. [2021-03-25 18:15:35,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:35,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 137 transitions. [2021-03-25 18:15:35,209 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 18:15:35,209 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 18:15:35,210 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 18:15:35,210 INFO L185 Difference]: Start difference. First operand has 114 places, 102 transitions, 1370 flow. Second operand 8 states and 137 transitions. [2021-03-25 18:15:35,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 106 transitions, 1750 flow [2021-03-25 18:15:35,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 106 transitions, 1527 flow, removed 66 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:35,237 INFO L241 Difference]: Finished difference. Result has 122 places, 104 transitions, 1385 flow [2021-03-25 18:15:35,237 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1147, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1385, PETRI_PLACES=122, PETRI_TRANSITIONS=104} [2021-03-25 18:15:35,237 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 107 predicate places. [2021-03-25 18:15:35,237 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:35,238 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 104 transitions, 1385 flow [2021-03-25 18:15:35,238 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 104 transitions, 1385 flow [2021-03-25 18:15:35,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 104 transitions, 1385 flow [2021-03-25 18:15:35,256 INFO L129 PetriNetUnfolder]: 84/190 cut-off events. [2021-03-25 18:15:35,256 INFO L130 PetriNetUnfolder]: For 6977/7031 co-relation queries the response was YES. [2021-03-25 18:15:35,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 190 events. 84/190 cut-off events. For 6977/7031 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 904 event pairs, 0 based on Foata normal form. 1/191 useless extension candidates. Maximal degree in co-relation 1497. Up to 119 conditions per place. [2021-03-25 18:15:35,258 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:35,350 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:35,351 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:35,351 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 114 [2021-03-25 18:15:35,351 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 102 transitions, 1301 flow [2021-03-25 18:15:35,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:35,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:35,351 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:35,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:35,552 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:35,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:35,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1659790933, now seen corresponding path program 1 times [2021-03-25 18:15:35,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:35,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848567657] [2021-03-25 18:15:35,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:35,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,572 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:35,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:35,604 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:35,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:35,619 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 18:15:35,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848567657] [2021-03-25 18:15:35,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81125632] [2021-03-25 18:15:35,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:15:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:35,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:35,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:35,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:35,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:35,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:35,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:35,680 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:35,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:35,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:35,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:35,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:35,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:35,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:35,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:35,697 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 18:15:35,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:35,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:35,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646467765] [2021-03-25 18:15:35,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:35,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:35,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:35,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:35,698 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 108 [2021-03-25 18:15:35,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 102 transitions, 1301 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:35,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:35,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 108 [2021-03-25 18:15:35,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:35,961 INFO L129 PetriNetUnfolder]: 87/197 cut-off events. [2021-03-25 18:15:35,961 INFO L130 PetriNetUnfolder]: For 9733/9825 co-relation queries the response was YES. [2021-03-25 18:15:35,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1879 conditions, 197 events. 87/197 cut-off events. For 9733/9825 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 933 event pairs, 0 based on Foata normal form. 33/230 useless extension candidates. Maximal degree in co-relation 1805. Up to 124 conditions per place. [2021-03-25 18:15:35,963 INFO L132 encePairwiseOnDemand]: 71/108 looper letters, 32 selfloop transitions, 66 changer transitions 2/106 dead transitions. [2021-03-25 18:15:35,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 106 transitions, 1805 flow [2021-03-25 18:15:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2021-03-25 18:15:35,964 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20679012345679013 [2021-03-25 18:15:35,964 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 134 transitions. [2021-03-25 18:15:35,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 134 transitions. [2021-03-25 18:15:35,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:35,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 134 transitions. [2021-03-25 18:15:35,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 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 18:15:35,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:35,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:35,965 INFO L185 Difference]: Start difference. First operand has 118 places, 102 transitions, 1301 flow. Second operand 6 states and 134 transitions. [2021-03-25 18:15:35,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 106 transitions, 1805 flow [2021-03-25 18:15:36,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 106 transitions, 1612 flow, removed 43 selfloop flow, removed 8 redundant places. [2021-03-25 18:15:36,015 INFO L241 Difference]: Finished difference. Result has 117 places, 104 transitions, 1405 flow [2021-03-25 18:15:36,015 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1405, PETRI_PLACES=117, PETRI_TRANSITIONS=104} [2021-03-25 18:15:36,015 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 102 predicate places. [2021-03-25 18:15:36,015 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:36,015 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 104 transitions, 1405 flow [2021-03-25 18:15:36,015 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 104 transitions, 1405 flow [2021-03-25 18:15:36,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 104 transitions, 1405 flow [2021-03-25 18:15:36,032 INFO L129 PetriNetUnfolder]: 85/192 cut-off events. [2021-03-25 18:15:36,033 INFO L130 PetriNetUnfolder]: For 6366/6367 co-relation queries the response was YES. [2021-03-25 18:15:36,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1610 conditions, 192 events. 85/192 cut-off events. For 6366/6367 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 913 event pairs, 0 based on Foata normal form. 1/193 useless extension candidates. Maximal degree in co-relation 1547. Up to 122 conditions per place. [2021-03-25 18:15:36,035 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:36,038 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:36,038 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 18:15:36,038 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-25 18:15:36,038 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 104 transitions, 1405 flow [2021-03-25 18:15:36,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:36,038 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:36,038 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:36,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:36,258 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:36,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:36,258 INFO L82 PathProgramCache]: Analyzing trace with hash 737106964, now seen corresponding path program 1 times [2021-03-25 18:15:36,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:36,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777918750] [2021-03-25 18:15:36,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:36,265 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:36,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:36,279 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:36,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:36,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:36,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:36,296 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 18:15:36,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777918750] [2021-03-25 18:15:36,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813048184] [2021-03-25 18:15:36,297 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 18:15:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:36,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:36,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:36,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:36,324 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:36,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:36,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:36,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:36,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:36,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:36,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:36,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:36,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:36,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:36,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:36,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:36,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:36,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:36,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:36,359 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-03-25 18:15:36,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:36,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:36,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:36,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:36,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:36,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:36,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:36,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:36,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:36,386 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 18:15:36,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:36,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:36,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503708123] [2021-03-25 18:15:36,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:36,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:36,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:36,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:36,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 108 [2021-03-25 18:15:36,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 104 transitions, 1405 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:36,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:36,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 108 [2021-03-25 18:15:36,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:36,740 INFO L129 PetriNetUnfolder]: 88/205 cut-off events. [2021-03-25 18:15:36,740 INFO L130 PetriNetUnfolder]: For 9169/9169 co-relation queries the response was YES. [2021-03-25 18:15:36,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1983 conditions, 205 events. 88/205 cut-off events. For 9169/9169 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 991 event pairs, 0 based on Foata normal form. 3/208 useless extension candidates. Maximal degree in co-relation 1915. Up to 179 conditions per place. [2021-03-25 18:15:36,743 INFO L132 encePairwiseOnDemand]: 70/108 looper letters, 64 selfloop transitions, 39 changer transitions 3/110 dead transitions. [2021-03-25 18:15:36,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 110 transitions, 1887 flow [2021-03-25 18:15:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:36,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:36,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 160 transitions. [2021-03-25 18:15:36,744 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14814814814814814 [2021-03-25 18:15:36,744 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 160 transitions. [2021-03-25 18:15:36,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 160 transitions. [2021-03-25 18:15:36,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:36,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 160 transitions. [2021-03-25 18:15:36,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.0) internal successors, (160), 10 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 18:15:36,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 108.0) internal successors, (1188), 11 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 18:15:36,745 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 108.0) internal successors, (1188), 11 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 18:15:36,745 INFO L185 Difference]: Start difference. First operand has 116 places, 104 transitions, 1405 flow. Second operand 10 states and 160 transitions. [2021-03-25 18:15:36,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 110 transitions, 1887 flow [2021-03-25 18:15:36,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 110 transitions, 1624 flow, removed 67 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:36,768 INFO L241 Difference]: Finished difference. Result has 127 places, 107 transitions, 1468 flow [2021-03-25 18:15:36,768 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=1142, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1468, PETRI_PLACES=127, PETRI_TRANSITIONS=107} [2021-03-25 18:15:36,768 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 112 predicate places. [2021-03-25 18:15:36,768 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:36,768 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 107 transitions, 1468 flow [2021-03-25 18:15:36,768 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 107 transitions, 1468 flow [2021-03-25 18:15:36,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 107 transitions, 1468 flow [2021-03-25 18:15:36,783 INFO L129 PetriNetUnfolder]: 86/197 cut-off events. [2021-03-25 18:15:36,783 INFO L130 PetriNetUnfolder]: For 7811/7813 co-relation queries the response was YES. [2021-03-25 18:15:36,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 197 events. 86/197 cut-off events. For 7811/7813 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 941 event pairs, 1 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 1648. Up to 124 conditions per place. [2021-03-25 18:15:36,785 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:36,945 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:36,946 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 18:15:36,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 178 [2021-03-25 18:15:36,946 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 104 transitions, 1312 flow [2021-03-25 18:15:36,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:36,946 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:36,946 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:37,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:37,152 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:37,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:37,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1293368021, now seen corresponding path program 1 times [2021-03-25 18:15:37,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:37,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001649503] [2021-03-25 18:15:37,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:37,160 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:37,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:37,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:37,181 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:37,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:37,190 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:37,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:37,198 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 18:15:37,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001649503] [2021-03-25 18:15:37,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712451537] [2021-03-25 18:15:37,199 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 18:15:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:37,215 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-25 18:15:37,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:37,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,222 INFO L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-03-25 18:15:37,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-03-25 18:15:37,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,235 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:37,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:37,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:37,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:37,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:37,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:37,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:37,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,250 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-03-25 18:15:37,250 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.9 percent of original size [2021-03-25 18:15:37,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:37,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:37,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:37,268 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-03-25 18:15:37,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:37,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:37,294 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 18:15:37,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:37,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:15:37,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287550755] [2021-03-25 18:15:37,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:15:37,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:37,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:15:37,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:15:37,295 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 112 [2021-03-25 18:15:37,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 104 transitions, 1312 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:37,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:37,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 112 [2021-03-25 18:15:37,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:37,583 INFO L129 PetriNetUnfolder]: 87/202 cut-off events. [2021-03-25 18:15:37,583 INFO L130 PetriNetUnfolder]: For 9273/9308 co-relation queries the response was YES. [2021-03-25 18:15:37,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2012 conditions, 202 events. 87/202 cut-off events. For 9273/9308 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 958 event pairs, 0 based on Foata normal form. 37/239 useless extension candidates. Maximal degree in co-relation 1931. Up to 178 conditions per place. [2021-03-25 18:15:37,585 INFO L132 encePairwiseOnDemand]: 67/112 looper letters, 56 selfloop transitions, 46 changer transitions 2/108 dead transitions. [2021-03-25 18:15:37,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 108 transitions, 1832 flow [2021-03-25 18:15:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 18:15:37,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 18:15:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 149 transitions. [2021-03-25 18:15:37,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14781746031746032 [2021-03-25 18:15:37,586 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 149 transitions. [2021-03-25 18:15:37,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 149 transitions. [2021-03-25 18:15:37,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:37,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 149 transitions. [2021-03-25 18:15:37,586 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 18:15:37,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:37,587 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:37,587 INFO L185 Difference]: Start difference. First operand has 121 places, 104 transitions, 1312 flow. Second operand 9 states and 149 transitions. [2021-03-25 18:15:37,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 108 transitions, 1832 flow [2021-03-25 18:15:37,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 108 transitions, 1660 flow, removed 49 selfloop flow, removed 9 redundant places. [2021-03-25 18:15:37,609 INFO L241 Difference]: Finished difference. Result has 124 places, 106 transitions, 1402 flow [2021-03-25 18:15:37,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1402, PETRI_PLACES=124, PETRI_TRANSITIONS=106} [2021-03-25 18:15:37,609 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 109 predicate places. [2021-03-25 18:15:37,609 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:37,609 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 106 transitions, 1402 flow [2021-03-25 18:15:37,609 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 106 transitions, 1402 flow [2021-03-25 18:15:37,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 106 transitions, 1402 flow [2021-03-25 18:15:37,625 INFO L129 PetriNetUnfolder]: 86/194 cut-off events. [2021-03-25 18:15:37,625 INFO L130 PetriNetUnfolder]: For 6953/6960 co-relation queries the response was YES. [2021-03-25 18:15:37,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1553 conditions, 194 events. 86/194 cut-off events. For 6953/6960 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 923 event pairs, 0 based on Foata normal form. 2/196 useless extension candidates. Maximal degree in co-relation 1483. Up to 123 conditions per place. [2021-03-25 18:15:37,627 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:37,708 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:37,708 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:37,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 100 [2021-03-25 18:15:37,709 INFO L480 AbstractCegarLoop]: Abstraction has has 120 places, 104 transitions, 1316 flow [2021-03-25 18:15:37,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:15:37,709 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:37,709 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:37,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:37,909 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:37,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:37,910 INFO L82 PathProgramCache]: Analyzing trace with hash -124528098, now seen corresponding path program 1 times [2021-03-25 18:15:37,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:37,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119294184] [2021-03-25 18:15:37,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:37,918 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:37,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:37,931 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:37,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:37,939 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:37,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:37,946 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 18:15:37,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119294184] [2021-03-25 18:15:37,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527405807] [2021-03-25 18:15:37,946 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 18:15:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:37,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:37,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:37,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:37,973 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:37,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:37,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:37,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:37,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:37,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:37,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:37,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:37,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:37,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:37,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:37,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,990 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-03-25 18:15:37,990 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-03-25 18:15:37,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:37,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:37,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:37,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:38,004 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 18:15:38,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 18:15:38,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:38,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:15:38,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:15:38,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:38,030 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 18:15:38,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:38,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:38,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926368463] [2021-03-25 18:15:38,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:38,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:38,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:38,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:38,031 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 114 [2021-03-25 18:15:38,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 104 transitions, 1316 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:38,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:38,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 114 [2021-03-25 18:15:38,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:38,186 INFO L129 PetriNetUnfolder]: 88/201 cut-off events. [2021-03-25 18:15:38,186 INFO L130 PetriNetUnfolder]: For 8541/8576 co-relation queries the response was YES. [2021-03-25 18:15:38,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 201 events. 88/201 cut-off events. For 8541/8576 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 971 event pairs, 1 based on Foata normal form. 37/238 useless extension candidates. Maximal degree in co-relation 1767. Up to 179 conditions per place. [2021-03-25 18:15:38,187 INFO L132 encePairwiseOnDemand]: 75/114 looper letters, 63 selfloop transitions, 39 changer transitions 2/108 dead transitions. [2021-03-25 18:15:38,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 108 transitions, 1704 flow [2021-03-25 18:15:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:38,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 138 transitions. [2021-03-25 18:15:38,188 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1513157894736842 [2021-03-25 18:15:38,188 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 138 transitions. [2021-03-25 18:15:38,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 138 transitions. [2021-03-25 18:15:38,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:38,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 138 transitions. [2021-03-25 18:15:38,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.25) internal successors, (138), 8 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:38,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:38,190 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:38,190 INFO L185 Difference]: Start difference. First operand has 120 places, 104 transitions, 1316 flow. Second operand 8 states and 138 transitions. [2021-03-25 18:15:38,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 108 transitions, 1704 flow [2021-03-25 18:15:38,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 108 transitions, 1528 flow, removed 44 selfloop flow, removed 8 redundant places. [2021-03-25 18:15:38,214 INFO L241 Difference]: Finished difference. Result has 123 places, 106 transitions, 1384 flow [2021-03-25 18:15:38,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1384, PETRI_PLACES=123, PETRI_TRANSITIONS=106} [2021-03-25 18:15:38,214 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 108 predicate places. [2021-03-25 18:15:38,214 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:38,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 106 transitions, 1384 flow [2021-03-25 18:15:38,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 106 transitions, 1384 flow [2021-03-25 18:15:38,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 106 transitions, 1384 flow [2021-03-25 18:15:38,227 INFO L129 PetriNetUnfolder]: 86/194 cut-off events. [2021-03-25 18:15:38,227 INFO L130 PetriNetUnfolder]: For 7244/7300 co-relation queries the response was YES. [2021-03-25 18:15:38,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 194 events. 86/194 cut-off events. For 7244/7300 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 916 event pairs, 0 based on Foata normal form. 1/195 useless extension candidates. Maximal degree in co-relation 1537. Up to 123 conditions per place. [2021-03-25 18:15:38,229 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:38,310 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:38,310 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:38,310 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-03-25 18:15:38,311 INFO L480 AbstractCegarLoop]: Abstraction has has 119 places, 104 transitions, 1298 flow [2021-03-25 18:15:38,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:38,311 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:38,311 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:38,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:38,516 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:38,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:38,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1745678386, now seen corresponding path program 1 times [2021-03-25 18:15:38,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:38,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560941645] [2021-03-25 18:15:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:38,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,542 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:38,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:38,570 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:38,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:38,587 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 18:15:38,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560941645] [2021-03-25 18:15:38,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959049446] [2021-03-25 18:15:38,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:15:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:38,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:38,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:38,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:38,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:38,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:38,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:38,648 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:38,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:38,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:38,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:38,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:38,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:38,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:38,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:38,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:38,666 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 18:15:38,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:38,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:38,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062014944] [2021-03-25 18:15:38,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:38,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:38,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:38,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:38,667 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 116 [2021-03-25 18:15:38,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 104 transitions, 1298 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:38,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:38,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 116 [2021-03-25 18:15:38,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:38,872 INFO L129 PetriNetUnfolder]: 88/200 cut-off events. [2021-03-25 18:15:38,872 INFO L130 PetriNetUnfolder]: For 8835/8840 co-relation queries the response was YES. [2021-03-25 18:15:38,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1926 conditions, 200 events. 88/200 cut-off events. For 8835/8840 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 965 event pairs, 0 based on Foata normal form. 1/201 useless extension candidates. Maximal degree in co-relation 1851. Up to 128 conditions per place. [2021-03-25 18:15:38,874 INFO L132 encePairwiseOnDemand]: 78/116 looper letters, 32 selfloop transitions, 68 changer transitions 2/108 dead transitions. [2021-03-25 18:15:38,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 108 transitions, 1814 flow [2021-03-25 18:15:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:38,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2021-03-25 18:15:38,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1939655172413793 [2021-03-25 18:15:38,875 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 135 transitions. [2021-03-25 18:15:38,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 135 transitions. [2021-03-25 18:15:38,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:38,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 135 transitions. [2021-03-25 18:15:38,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.5) internal successors, (135), 6 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 18:15:38,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:38,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:38,875 INFO L185 Difference]: Start difference. First operand has 119 places, 104 transitions, 1298 flow. Second operand 6 states and 135 transitions. [2021-03-25 18:15:38,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 108 transitions, 1814 flow [2021-03-25 18:15:38,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 108 transitions, 1652 flow, removed 44 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:38,906 INFO L241 Difference]: Finished difference. Result has 119 places, 106 transitions, 1441 flow [2021-03-25 18:15:38,906 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1441, PETRI_PLACES=119, PETRI_TRANSITIONS=106} [2021-03-25 18:15:38,906 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 104 predicate places. [2021-03-25 18:15:38,906 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:38,906 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 106 transitions, 1441 flow [2021-03-25 18:15:38,907 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 106 transitions, 1441 flow [2021-03-25 18:15:38,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 106 transitions, 1441 flow [2021-03-25 18:15:38,930 INFO L129 PetriNetUnfolder]: 88/197 cut-off events. [2021-03-25 18:15:38,930 INFO L130 PetriNetUnfolder]: For 9056/9113 co-relation queries the response was YES. [2021-03-25 18:15:38,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1654 conditions, 197 events. 88/197 cut-off events. For 9056/9113 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 931 event pairs, 0 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 1590. Up to 126 conditions per place. [2021-03-25 18:15:38,932 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:38,974 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:38,974 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:38,975 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 18:15:38,975 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 106 transitions, 1442 flow [2021-03-25 18:15:38,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:38,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:38,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:39,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-03-25 18:15:39,175 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:39,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:39,176 INFO L82 PathProgramCache]: Analyzing trace with hash 744581622, now seen corresponding path program 1 times [2021-03-25 18:15:39,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:39,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274245428] [2021-03-25 18:15:39,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:39,196 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:39,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:39,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:39,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:39,216 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:39,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:39,222 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 18:15:39,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274245428] [2021-03-25 18:15:39,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750972212] [2021-03-25 18:15:39,222 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 18:15:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:39,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:39,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:39,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,245 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:39,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:39,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:39,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:39,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:39,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:39,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:39,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:39,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:39,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:39,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:39,277 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 18:15:39,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:39,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:39,299 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 18:15:39,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:39,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:39,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313060564] [2021-03-25 18:15:39,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:39,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:39,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:39,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:39,299 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 117 [2021-03-25 18:15:39,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 106 transitions, 1442 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:39,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:39,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 117 [2021-03-25 18:15:39,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:39,503 INFO L129 PetriNetUnfolder]: 90/205 cut-off events. [2021-03-25 18:15:39,504 INFO L130 PetriNetUnfolder]: For 7878/7913 co-relation queries the response was YES. [2021-03-25 18:15:39,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1987 conditions, 205 events. 90/205 cut-off events. For 7878/7913 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 985 event pairs, 1 based on Foata normal form. 37/242 useless extension candidates. Maximal degree in co-relation 1918. Up to 183 conditions per place. [2021-03-25 18:15:39,505 INFO L132 encePairwiseOnDemand]: 77/117 looper letters, 64 selfloop transitions, 40 changer transitions 2/110 dead transitions. [2021-03-25 18:15:39,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 110 transitions, 1838 flow [2021-03-25 18:15:39,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:39,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 139 transitions. [2021-03-25 18:15:39,506 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1485042735042735 [2021-03-25 18:15:39,506 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 139 transitions. [2021-03-25 18:15:39,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 139 transitions. [2021-03-25 18:15:39,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:39,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 139 transitions. [2021-03-25 18:15:39,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.375) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:39,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 117.0) internal successors, (1053), 9 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:39,507 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 117.0) internal successors, (1053), 9 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:39,507 INFO L185 Difference]: Start difference. First operand has 118 places, 106 transitions, 1442 flow. Second operand 8 states and 139 transitions. [2021-03-25 18:15:39,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 110 transitions, 1838 flow [2021-03-25 18:15:39,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 110 transitions, 1601 flow, removed 70 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:39,527 INFO L241 Difference]: Finished difference. Result has 126 places, 108 transitions, 1455 flow [2021-03-25 18:15:39,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1205, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1455, PETRI_PLACES=126, PETRI_TRANSITIONS=108} [2021-03-25 18:15:39,527 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 111 predicate places. [2021-03-25 18:15:39,527 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:39,527 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 108 transitions, 1455 flow [2021-03-25 18:15:39,528 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 108 transitions, 1455 flow [2021-03-25 18:15:39,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 108 transitions, 1455 flow [2021-03-25 18:15:39,547 INFO L129 PetriNetUnfolder]: 88/198 cut-off events. [2021-03-25 18:15:39,547 INFO L130 PetriNetUnfolder]: For 7459/7465 co-relation queries the response was YES. [2021-03-25 18:15:39,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1650 conditions, 198 events. 88/198 cut-off events. For 7459/7465 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 943 event pairs, 0 based on Foata normal form. 1/199 useless extension candidates. Maximal degree in co-relation 1579. Up to 127 conditions per place. [2021-03-25 18:15:39,549 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:39,639 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:39,639 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:39,639 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-25 18:15:39,639 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 106 transitions, 1367 flow [2021-03-25 18:15:39,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:39,639 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:39,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:39,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-03-25 18:15:39,840 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:39,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:39,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1974711594, now seen corresponding path program 1 times [2021-03-25 18:15:39,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:39,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104097898] [2021-03-25 18:15:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:39,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,856 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:39,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:39,884 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:39,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:39,899 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 18:15:39,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104097898] [2021-03-25 18:15:39,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490045768] [2021-03-25 18:15:39,900 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 18:15:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:39,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:39,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:39,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:39,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:39,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:39,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:39,938 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:39,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:39,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:39,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:39,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:39,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:39,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:39,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:39,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:39,952 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 18:15:39,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:39,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:39,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500038624] [2021-03-25 18:15:39,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:39,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:39,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:39,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:39,953 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 119 [2021-03-25 18:15:39,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 106 transitions, 1367 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:39,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:39,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 119 [2021-03-25 18:15:39,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:40,138 INFO L129 PetriNetUnfolder]: 91/205 cut-off events. [2021-03-25 18:15:40,138 INFO L130 PetriNetUnfolder]: For 11126/11131 co-relation queries the response was YES. [2021-03-25 18:15:40,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2017 conditions, 205 events. 91/205 cut-off events. For 11126/11131 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 994 event pairs, 0 based on Foata normal form. 1/206 useless extension candidates. Maximal degree in co-relation 1941. Up to 132 conditions per place. [2021-03-25 18:15:40,139 INFO L132 encePairwiseOnDemand]: 80/119 looper letters, 32 selfloop transitions, 70 changer transitions 2/110 dead transitions. [2021-03-25 18:15:40,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 110 transitions, 1895 flow [2021-03-25 18:15:40,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:40,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2021-03-25 18:15:40,142 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19047619047619047 [2021-03-25 18:15:40,142 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 136 transitions. [2021-03-25 18:15:40,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 136 transitions. [2021-03-25 18:15:40,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:40,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 136 transitions. [2021-03-25 18:15:40,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:40,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:40,143 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:40,143 INFO L185 Difference]: Start difference. First operand has 122 places, 106 transitions, 1367 flow. Second operand 6 states and 136 transitions. [2021-03-25 18:15:40,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 110 transitions, 1895 flow [2021-03-25 18:15:40,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 110 transitions, 1692 flow, removed 45 selfloop flow, removed 8 redundant places. [2021-03-25 18:15:40,168 INFO L241 Difference]: Finished difference. Result has 121 places, 108 transitions, 1477 flow [2021-03-25 18:15:40,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1477, PETRI_PLACES=121, PETRI_TRANSITIONS=108} [2021-03-25 18:15:40,168 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 106 predicate places. [2021-03-25 18:15:40,168 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:40,168 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 108 transitions, 1477 flow [2021-03-25 18:15:40,168 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 108 transitions, 1477 flow [2021-03-25 18:15:40,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 108 transitions, 1477 flow [2021-03-25 18:15:40,182 INFO L129 PetriNetUnfolder]: 90/201 cut-off events. [2021-03-25 18:15:40,182 INFO L130 PetriNetUnfolder]: For 9760/9761 co-relation queries the response was YES. [2021-03-25 18:15:40,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1737 conditions, 201 events. 90/201 cut-off events. For 9760/9761 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 961 event pairs, 1 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 1672. Up to 130 conditions per place. [2021-03-25 18:15:40,184 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:40,238 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:40,238 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:40,238 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-03-25 18:15:40,238 INFO L480 AbstractCegarLoop]: Abstraction has has 120 places, 108 transitions, 1478 flow [2021-03-25 18:15:40,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:40,239 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:40,239 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:40,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:40,452 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:40,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:40,452 INFO L82 PathProgramCache]: Analyzing trace with hash -118063451, now seen corresponding path program 1 times [2021-03-25 18:15:40,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:40,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297085202] [2021-03-25 18:15:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:40,458 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:40,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:40,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:40,472 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:40,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:40,482 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:40,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:40,490 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 18:15:40,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297085202] [2021-03-25 18:15:40,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101229235] [2021-03-25 18:15:40,491 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 18:15:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:40,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:40,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:40,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:40,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:40,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:40,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:40,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:40,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:40,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:40,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:40,514 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:40,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:40,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:40,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:40,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:40,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:40,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:40,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:40,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:40,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:40,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:40,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:40,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:40,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:40,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:40,547 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-03-25 18:15:40,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:40,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:40,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:40,574 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 18:15:40,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:40,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:40,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236809006] [2021-03-25 18:15:40,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:40,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:40,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:40,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:40,575 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 120 [2021-03-25 18:15:40,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 108 transitions, 1478 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:40,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:40,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 120 [2021-03-25 18:15:40,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:40,825 INFO L129 PetriNetUnfolder]: 92/209 cut-off events. [2021-03-25 18:15:40,826 INFO L130 PetriNetUnfolder]: For 8183/8183 co-relation queries the response was YES. [2021-03-25 18:15:40,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2037 conditions, 209 events. 92/209 cut-off events. For 8183/8183 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1018 event pairs, 1 based on Foata normal form. 2/211 useless extension candidates. Maximal degree in co-relation 1967. Up to 187 conditions per place. [2021-03-25 18:15:40,827 INFO L132 encePairwiseOnDemand]: 79/120 looper letters, 65 selfloop transitions, 41 changer transitions 2/112 dead transitions. [2021-03-25 18:15:40,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 112 transitions, 1882 flow [2021-03-25 18:15:40,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:40,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions. [2021-03-25 18:15:40,828 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14583333333333334 [2021-03-25 18:15:40,828 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 140 transitions. [2021-03-25 18:15:40,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 140 transitions. [2021-03-25 18:15:40,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:40,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 140 transitions. [2021-03-25 18:15:40,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.5) internal successors, (140), 8 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 18:15:40,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:40,830 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:40,830 INFO L185 Difference]: Start difference. First operand has 120 places, 108 transitions, 1478 flow. Second operand 8 states and 140 transitions. [2021-03-25 18:15:40,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 112 transitions, 1882 flow [2021-03-25 18:15:40,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 112 transitions, 1638 flow, removed 72 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:40,857 INFO L241 Difference]: Finished difference. Result has 128 places, 110 transitions, 1490 flow [2021-03-25 18:15:40,858 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=1234, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1490, PETRI_PLACES=128, PETRI_TRANSITIONS=110} [2021-03-25 18:15:40,858 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 113 predicate places. [2021-03-25 18:15:40,858 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:40,858 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 110 transitions, 1490 flow [2021-03-25 18:15:40,858 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 110 transitions, 1490 flow [2021-03-25 18:15:40,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 110 transitions, 1490 flow [2021-03-25 18:15:40,872 INFO L129 PetriNetUnfolder]: 90/202 cut-off events. [2021-03-25 18:15:40,872 INFO L130 PetriNetUnfolder]: For 7807/7812 co-relation queries the response was YES. [2021-03-25 18:15:40,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1692 conditions, 202 events. 90/202 cut-off events. For 7807/7812 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 963 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 1620. Up to 131 conditions per place. [2021-03-25 18:15:40,873 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:40,964 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:40,964 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:40,964 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-03-25 18:15:40,964 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 108 transitions, 1400 flow [2021-03-25 18:15:40,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:40,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:40,964 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:41,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-03-25 18:15:41,165 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:41,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:41,165 INFO L82 PathProgramCache]: Analyzing trace with hash 2060599047, now seen corresponding path program 1 times [2021-03-25 18:15:41,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:41,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721514326] [2021-03-25 18:15:41,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:41,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,179 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:41,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:41,207 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:41,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:41,223 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 18:15:41,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721514326] [2021-03-25 18:15:41,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777495917] [2021-03-25 18:15:41,224 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 18:15:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:41,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:41,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:41,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:41,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:41,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:41,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:41,263 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:41,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:41,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:41,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:41,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:41,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:41,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:41,278 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 18:15:41,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:41,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:41,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620535116] [2021-03-25 18:15:41,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:41,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:41,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:41,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:41,279 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 122 [2021-03-25 18:15:41,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 108 transitions, 1400 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:41,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:41,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 122 [2021-03-25 18:15:41,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:41,491 INFO L129 PetriNetUnfolder]: 93/209 cut-off events. [2021-03-25 18:15:41,491 INFO L130 PetriNetUnfolder]: For 11709/11754 co-relation queries the response was YES. [2021-03-25 18:15:41,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2067 conditions, 209 events. 93/209 cut-off events. For 11709/11754 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1018 event pairs, 0 based on Foata normal form. 41/250 useless extension candidates. Maximal degree in co-relation 1990. Up to 136 conditions per place. [2021-03-25 18:15:41,492 INFO L132 encePairwiseOnDemand]: 82/122 looper letters, 32 selfloop transitions, 72 changer transitions 2/112 dead transitions. [2021-03-25 18:15:41,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 112 transitions, 1940 flow [2021-03-25 18:15:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:41,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:41,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2021-03-25 18:15:41,493 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1871584699453552 [2021-03-25 18:15:41,493 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 137 transitions. [2021-03-25 18:15:41,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 137 transitions. [2021-03-25 18:15:41,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:41,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 137 transitions. [2021-03-25 18:15:41,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 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 18:15:41,494 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 18:15:41,494 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 18:15:41,494 INFO L185 Difference]: Start difference. First operand has 124 places, 108 transitions, 1400 flow. Second operand 6 states and 137 transitions. [2021-03-25 18:15:41,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 112 transitions, 1940 flow [2021-03-25 18:15:41,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 112 transitions, 1732 flow, removed 46 selfloop flow, removed 8 redundant places. [2021-03-25 18:15:41,519 INFO L241 Difference]: Finished difference. Result has 123 places, 110 transitions, 1513 flow [2021-03-25 18:15:41,519 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=1196, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1513, PETRI_PLACES=123, PETRI_TRANSITIONS=110} [2021-03-25 18:15:41,520 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 108 predicate places. [2021-03-25 18:15:41,520 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:41,520 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 110 transitions, 1513 flow [2021-03-25 18:15:41,520 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 110 transitions, 1513 flow [2021-03-25 18:15:41,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 110 transitions, 1513 flow [2021-03-25 18:15:41,533 INFO L129 PetriNetUnfolder]: 91/204 cut-off events. [2021-03-25 18:15:41,534 INFO L130 PetriNetUnfolder]: For 9719/9720 co-relation queries the response was YES. [2021-03-25 18:15:41,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1739 conditions, 204 events. 91/204 cut-off events. For 9719/9720 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 984 event pairs, 1 based on Foata normal form. 1/205 useless extension candidates. Maximal degree in co-relation 1673. Up to 134 conditions per place. [2021-03-25 18:15:41,535 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:41,578 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:41,578 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:41,579 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-25 18:15:41,579 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 110 transitions, 1514 flow [2021-03-25 18:15:41,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:41,579 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:41,579 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:41,779 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-03-25 18:15:41,779 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:41,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:41,780 INFO L82 PathProgramCache]: Analyzing trace with hash -115379378, now seen corresponding path program 1 times [2021-03-25 18:15:41,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:41,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313887551] [2021-03-25 18:15:41,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:41,796 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:41,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:41,813 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:41,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:41,823 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:41,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:41,830 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 18:15:41,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313887551] [2021-03-25 18:15:41,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547716389] [2021-03-25 18:15:41,830 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 18:15:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:41,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:41,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:41,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:41,851 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:41,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:41,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:41,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:41,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:41,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:41,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:41,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:41,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:41,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:41,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:41,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,867 INFO L147 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size 49 [2021-03-25 18:15:41,868 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 18:15:41,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:41,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:41,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:41,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:41,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:41,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:41,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:41,888 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:15:41,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:41,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:41,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:41,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:41,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:41,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:41,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:41,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:41,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:41,914 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 18:15:41,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:41,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:41,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639291822] [2021-03-25 18:15:41,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:41,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:41,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:41,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:41,915 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 123 [2021-03-25 18:15:41,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 110 transitions, 1514 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:41,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:41,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 123 [2021-03-25 18:15:41,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:42,244 INFO L129 PetriNetUnfolder]: 94/216 cut-off events. [2021-03-25 18:15:42,244 INFO L130 PetriNetUnfolder]: For 8590/8590 co-relation queries the response was YES. [2021-03-25 18:15:42,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2138 conditions, 216 events. 94/216 cut-off events. For 8590/8590 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1063 event pairs, 1 based on Foata normal form. 3/219 useless extension candidates. Maximal degree in co-relation 2067. Up to 191 conditions per place. [2021-03-25 18:15:42,245 INFO L132 encePairwiseOnDemand]: 81/123 looper letters, 66 selfloop transitions, 43 changer transitions 3/116 dead transitions. [2021-03-25 18:15:42,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 116 transitions, 2026 flow [2021-03-25 18:15:42,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:42,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 164 transitions. [2021-03-25 18:15:42,246 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13333333333333333 [2021-03-25 18:15:42,246 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 164 transitions. [2021-03-25 18:15:42,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 164 transitions. [2021-03-25 18:15:42,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:42,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 164 transitions. [2021-03-25 18:15:42,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.4) internal successors, (164), 10 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 18:15:42,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 123.0) internal successors, (1353), 11 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:42,247 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 123.0) internal successors, (1353), 11 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:42,247 INFO L185 Difference]: Start difference. First operand has 122 places, 110 transitions, 1514 flow. Second operand 10 states and 164 transitions. [2021-03-25 18:15:42,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 116 transitions, 2026 flow [2021-03-25 18:15:42,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 116 transitions, 1736 flow, removed 74 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:42,275 INFO L241 Difference]: Finished difference. Result has 133 places, 113 transitions, 1576 flow [2021-03-25 18:15:42,275 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1576, PETRI_PLACES=133, PETRI_TRANSITIONS=113} [2021-03-25 18:15:42,275 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 118 predicate places. [2021-03-25 18:15:42,276 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:42,276 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 113 transitions, 1576 flow [2021-03-25 18:15:42,276 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 113 transitions, 1576 flow [2021-03-25 18:15:42,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 113 transitions, 1576 flow [2021-03-25 18:15:42,290 INFO L129 PetriNetUnfolder]: 92/207 cut-off events. [2021-03-25 18:15:42,290 INFO L130 PetriNetUnfolder]: For 8349/8355 co-relation queries the response was YES. [2021-03-25 18:15:42,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1819 conditions, 207 events. 92/207 cut-off events. For 8349/8355 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1015 event pairs, 0 based on Foata normal form. 1/208 useless extension candidates. Maximal degree in co-relation 1740. Up to 136 conditions per place. [2021-03-25 18:15:42,292 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:42,424 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:42,424 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:42,424 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-03-25 18:15:42,425 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 110 transitions, 1400 flow [2021-03-25 18:15:42,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:42,425 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:42,425 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:42,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2021-03-25 18:15:42,625 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:42,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:42,626 INFO L82 PathProgramCache]: Analyzing trace with hash 2146486500, now seen corresponding path program 1 times [2021-03-25 18:15:42,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:42,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638350917] [2021-03-25 18:15:42,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:42,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,643 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:42,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:42,678 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:42,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:42,696 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 18:15:42,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638350917] [2021-03-25 18:15:42,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761164682] [2021-03-25 18:15:42,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 18:15:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:42,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:42,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:42,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:42,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:42,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:42,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:42,744 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:42,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:42,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:42,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:42,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:42,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:42,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:42,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:42,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:42,760 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 18:15:42,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:42,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:42,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936485450] [2021-03-25 18:15:42,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:42,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:42,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:42,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:42,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 126 [2021-03-25 18:15:42,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 110 transitions, 1400 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:42,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:42,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 126 [2021-03-25 18:15:42,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:43,041 INFO L129 PetriNetUnfolder]: 95/213 cut-off events. [2021-03-25 18:15:43,042 INFO L130 PetriNetUnfolder]: For 12430/12435 co-relation queries the response was YES. [2021-03-25 18:15:43,043 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2162 conditions, 213 events. 95/213 cut-off events. For 12430/12435 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1038 event pairs, 0 based on Foata normal form. 1/214 useless extension candidates. Maximal degree in co-relation 2078. Up to 140 conditions per place. [2021-03-25 18:15:43,044 INFO L132 encePairwiseOnDemand]: 85/126 looper letters, 32 selfloop transitions, 74 changer transitions 2/114 dead transitions. [2021-03-25 18:15:43,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 114 transitions, 1952 flow [2021-03-25 18:15:43,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:43,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:43,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2021-03-25 18:15:43,047 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18253968253968253 [2021-03-25 18:15:43,047 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 138 transitions. [2021-03-25 18:15:43,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 138 transitions. [2021-03-25 18:15:43,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:43,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 138 transitions. [2021-03-25 18:15:43,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:43,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:43,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:43,051 INFO L185 Difference]: Start difference. First operand has 127 places, 110 transitions, 1400 flow. Second operand 6 states and 138 transitions. [2021-03-25 18:15:43,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 114 transitions, 1952 flow [2021-03-25 18:15:43,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 114 transitions, 1772 flow, removed 50 selfloop flow, removed 9 redundant places. [2021-03-25 18:15:43,094 INFO L241 Difference]: Finished difference. Result has 125 places, 112 transitions, 1549 flow [2021-03-25 18:15:43,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1549, PETRI_PLACES=125, PETRI_TRANSITIONS=112} [2021-03-25 18:15:43,094 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 110 predicate places. [2021-03-25 18:15:43,094 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:43,094 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 112 transitions, 1549 flow [2021-03-25 18:15:43,094 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 112 transitions, 1549 flow [2021-03-25 18:15:43,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 112 transitions, 1549 flow [2021-03-25 18:15:43,115 INFO L129 PetriNetUnfolder]: 93/208 cut-off events. [2021-03-25 18:15:43,115 INFO L130 PetriNetUnfolder]: For 9955/9955 co-relation queries the response was YES. [2021-03-25 18:15:43,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1782 conditions, 208 events. 93/208 cut-off events. For 9955/9955 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1004 event pairs, 1 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 1715. Up to 138 conditions per place. [2021-03-25 18:15:43,118 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:43,172 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:43,172 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:43,172 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-03-25 18:15:43,172 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 112 transitions, 1550 flow [2021-03-25 18:15:43,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:43,172 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:43,172 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:43,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:43,388 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:43,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:43,388 INFO L82 PathProgramCache]: Analyzing trace with hash 657207502, now seen corresponding path program 1 times [2021-03-25 18:15:43,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:43,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302649218] [2021-03-25 18:15:43,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:43,394 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:43,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:43,407 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:43,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:43,415 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:43,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:43,422 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 18:15:43,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302649218] [2021-03-25 18:15:43,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133665320] [2021-03-25 18:15:43,422 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 18:15:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:43,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:43,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:43,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:43,448 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:43,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:43,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:43,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:43,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:43,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:43,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:43,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:43,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:43,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:43,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:43,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:43,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:43,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:43,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:43,483 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 18:15:43,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:43,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:43,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:15:43,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 18:15:43,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:43,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:43,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:43,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:43,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:43,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:43,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:43,506 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 18:15:43,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:43,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:43,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145609858] [2021-03-25 18:15:43,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:43,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:43,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:43,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:43,507 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 127 [2021-03-25 18:15:43,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 112 transitions, 1550 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:43,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:43,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 127 [2021-03-25 18:15:43,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:43,740 INFO L129 PetriNetUnfolder]: 96/217 cut-off events. [2021-03-25 18:15:43,740 INFO L130 PetriNetUnfolder]: For 9003/9003 co-relation queries the response was YES. [2021-03-25 18:15:43,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2137 conditions, 217 events. 96/217 cut-off events. For 9003/9003 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1065 event pairs, 1 based on Foata normal form. 2/219 useless extension candidates. Maximal degree in co-relation 2065. Up to 195 conditions per place. [2021-03-25 18:15:43,742 INFO L132 encePairwiseOnDemand]: 84/127 looper letters, 67 selfloop transitions, 43 changer transitions 2/116 dead transitions. [2021-03-25 18:15:43,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 116 transitions, 1970 flow [2021-03-25 18:15:43,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2021-03-25 18:15:43,743 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13976377952755906 [2021-03-25 18:15:43,743 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 142 transitions. [2021-03-25 18:15:43,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 142 transitions. [2021-03-25 18:15:43,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:43,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 142 transitions. [2021-03-25 18:15:43,743 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 18:15:43,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:43,744 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:43,744 INFO L185 Difference]: Start difference. First operand has 124 places, 112 transitions, 1550 flow. Second operand 8 states and 142 transitions. [2021-03-25 18:15:43,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 116 transitions, 1970 flow [2021-03-25 18:15:43,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 116 transitions, 1712 flow, removed 76 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:43,779 INFO L241 Difference]: Finished difference. Result has 132 places, 114 transitions, 1560 flow [2021-03-25 18:15:43,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=1292, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1560, PETRI_PLACES=132, PETRI_TRANSITIONS=114} [2021-03-25 18:15:43,779 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 117 predicate places. [2021-03-25 18:15:43,779 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:43,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 114 transitions, 1560 flow [2021-03-25 18:15:43,780 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 114 transitions, 1560 flow [2021-03-25 18:15:43,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 114 transitions, 1560 flow [2021-03-25 18:15:43,800 INFO L129 PetriNetUnfolder]: 94/210 cut-off events. [2021-03-25 18:15:43,801 INFO L130 PetriNetUnfolder]: For 8570/8575 co-relation queries the response was YES. [2021-03-25 18:15:43,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 210 events. 94/210 cut-off events. For 8570/8575 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1037 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 1702. Up to 139 conditions per place. [2021-03-25 18:15:43,803 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:43,918 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:43,918 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:43,918 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139 [2021-03-25 18:15:43,919 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 112 transitions, 1466 flow [2021-03-25 18:15:43,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:43,919 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:43,919 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:44,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:44,138 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:44,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:44,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2033964192, now seen corresponding path program 1 times [2021-03-25 18:15:44,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:44,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904508434] [2021-03-25 18:15:44,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:44,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,161 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:44,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:44,189 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:44,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:44,203 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 18:15:44,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904508434] [2021-03-25 18:15:44,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797530569] [2021-03-25 18:15:44,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:15:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:44,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:44,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:44,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:44,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:44,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:44,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:44,250 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:44,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:44,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:44,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:44,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:44,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:44,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:44,267 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 18:15:44,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:44,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:44,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861526888] [2021-03-25 18:15:44,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:44,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:44,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:44,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:44,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 129 [2021-03-25 18:15:44,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 112 transitions, 1466 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:44,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:44,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 129 [2021-03-25 18:15:44,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:44,552 INFO L129 PetriNetUnfolder]: 97/217 cut-off events. [2021-03-25 18:15:44,552 INFO L130 PetriNetUnfolder]: For 12854/12859 co-relation queries the response was YES. [2021-03-25 18:15:44,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2167 conditions, 217 events. 97/217 cut-off events. For 12854/12859 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1065 event pairs, 0 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 2088. Up to 144 conditions per place. [2021-03-25 18:15:44,556 INFO L132 encePairwiseOnDemand]: 87/129 looper letters, 32 selfloop transitions, 76 changer transitions 2/116 dead transitions. [2021-03-25 18:15:44,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 116 transitions, 2030 flow [2021-03-25 18:15:44,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:44,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:44,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2021-03-25 18:15:44,557 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17958656330749354 [2021-03-25 18:15:44,557 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 139 transitions. [2021-03-25 18:15:44,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 139 transitions. [2021-03-25 18:15:44,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:44,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 139 transitions. [2021-03-25 18:15:44,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:44,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:44,558 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:44,558 INFO L185 Difference]: Start difference. First operand has 128 places, 112 transitions, 1466 flow. Second operand 6 states and 139 transitions. [2021-03-25 18:15:44,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 116 transitions, 2030 flow [2021-03-25 18:15:44,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 116 transitions, 1812 flow, removed 48 selfloop flow, removed 8 redundant places. [2021-03-25 18:15:44,596 INFO L241 Difference]: Finished difference. Result has 127 places, 114 transitions, 1585 flow [2021-03-25 18:15:44,596 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1585, PETRI_PLACES=127, PETRI_TRANSITIONS=114} [2021-03-25 18:15:44,596 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 112 predicate places. [2021-03-25 18:15:44,596 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:44,596 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 114 transitions, 1585 flow [2021-03-25 18:15:44,596 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 114 transitions, 1585 flow [2021-03-25 18:15:44,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 114 transitions, 1585 flow [2021-03-25 18:15:44,612 INFO L129 PetriNetUnfolder]: 96/213 cut-off events. [2021-03-25 18:15:44,612 INFO L130 PetriNetUnfolder]: For 11318/11319 co-relation queries the response was YES. [2021-03-25 18:15:44,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 213 events. 96/213 cut-off events. For 11318/11319 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1037 event pairs, 1 based on Foata normal form. 1/214 useless extension candidates. Maximal degree in co-relation 1801. Up to 142 conditions per place. [2021-03-25 18:15:44,614 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:44,657 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:44,657 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:44,658 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-25 18:15:44,658 INFO L480 AbstractCegarLoop]: Abstraction has has 126 places, 114 transitions, 1586 flow [2021-03-25 18:15:44,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:44,658 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:44,658 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:44,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:44,861 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:44,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:44,861 INFO L82 PathProgramCache]: Analyzing trace with hash -108828241, now seen corresponding path program 1 times [2021-03-25 18:15:44,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:44,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960499491] [2021-03-25 18:15:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:44,867 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:44,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:44,881 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:44,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:44,892 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:44,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:44,900 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 18:15:44,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960499491] [2021-03-25 18:15:44,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697093886] [2021-03-25 18:15:44,900 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 18:15:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:44,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:44,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:44,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:44,936 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:44,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:44,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:44,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:44,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:44,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:44,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:44,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:44,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:44,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:44,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:44,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,952 INFO L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-03-25 18:15:44,953 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.4 percent of original size [2021-03-25 18:15:44,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:44,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:44,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:15:44,969 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 18:15:44,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:15:44,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:44,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:44,993 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 18:15:44,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:44,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:44,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224737010] [2021-03-25 18:15:44,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:44,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:44,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:44,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:44,994 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 130 [2021-03-25 18:15:44,994 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 114 transitions, 1586 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:44,994 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:44,994 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 130 [2021-03-25 18:15:44,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:45,300 INFO L129 PetriNetUnfolder]: 98/221 cut-off events. [2021-03-25 18:15:45,300 INFO L130 PetriNetUnfolder]: For 9428/9428 co-relation queries the response was YES. [2021-03-25 18:15:45,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 221 events. 98/221 cut-off events. For 9428/9428 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1093 event pairs, 1 based on Foata normal form. 2/223 useless extension candidates. Maximal degree in co-relation 2114. Up to 199 conditions per place. [2021-03-25 18:15:45,302 INFO L132 encePairwiseOnDemand]: 86/130 looper letters, 68 selfloop transitions, 44 changer transitions 2/118 dead transitions. [2021-03-25 18:15:45,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 118 transitions, 2014 flow [2021-03-25 18:15:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:45,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 143 transitions. [2021-03-25 18:15:45,303 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1375 [2021-03-25 18:15:45,303 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 143 transitions. [2021-03-25 18:15:45,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 143 transitions. [2021-03-25 18:15:45,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:45,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 143 transitions. [2021-03-25 18:15:45,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.875) internal successors, (143), 8 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:45,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:45,304 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:45,304 INFO L185 Difference]: Start difference. First operand has 126 places, 114 transitions, 1586 flow. Second operand 8 states and 143 transitions. [2021-03-25 18:15:45,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 118 transitions, 2014 flow [2021-03-25 18:15:45,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 118 transitions, 1749 flow, removed 78 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:45,334 INFO L241 Difference]: Finished difference. Result has 134 places, 116 transitions, 1595 flow [2021-03-25 18:15:45,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=1321, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1595, PETRI_PLACES=134, PETRI_TRANSITIONS=116} [2021-03-25 18:15:45,334 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 119 predicate places. [2021-03-25 18:15:45,334 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:45,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 116 transitions, 1595 flow [2021-03-25 18:15:45,335 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 116 transitions, 1595 flow [2021-03-25 18:15:45,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 116 transitions, 1595 flow [2021-03-25 18:15:45,361 INFO L129 PetriNetUnfolder]: 96/214 cut-off events. [2021-03-25 18:15:45,362 INFO L130 PetriNetUnfolder]: For 8985/8991 co-relation queries the response was YES. [2021-03-25 18:15:45,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1818 conditions, 214 events. 96/214 cut-off events. For 8985/8991 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1062 event pairs, 0 based on Foata normal form. 1/215 useless extension candidates. Maximal degree in co-relation 1743. Up to 143 conditions per place. [2021-03-25 18:15:45,364 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:45,448 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:45,448 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:45,448 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 114 [2021-03-25 18:15:45,448 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 114 transitions, 1499 flow [2021-03-25 18:15:45,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:45,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:45,449 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:45,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-03-25 18:15:45,649 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:45,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:45,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1948076739, now seen corresponding path program 1 times [2021-03-25 18:15:45,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:45,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891395734] [2021-03-25 18:15:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:45,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,662 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:45,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:45,688 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:45,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:45,703 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 18:15:45,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891395734] [2021-03-25 18:15:45,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180447648] [2021-03-25 18:15:45,703 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 18:15:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:45,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:45,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:45,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:45,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:45,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:45,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:45,744 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:45,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:45,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:45,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:45,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:45,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:45,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:45,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:45,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:45,758 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 18:15:45,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:45,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:45,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270917259] [2021-03-25 18:15:45,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:45,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:45,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:45,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:45,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 132 [2021-03-25 18:15:45,759 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 114 transitions, 1499 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:45,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:45,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 132 [2021-03-25 18:15:45,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:45,959 INFO L129 PetriNetUnfolder]: 99/221 cut-off events. [2021-03-25 18:15:45,959 INFO L130 PetriNetUnfolder]: For 13458/13463 co-relation queries the response was YES. [2021-03-25 18:15:45,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2217 conditions, 221 events. 99/221 cut-off events. For 13458/13463 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1087 event pairs, 0 based on Foata normal form. 1/222 useless extension candidates. Maximal degree in co-relation 2137. Up to 148 conditions per place. [2021-03-25 18:15:45,961 INFO L132 encePairwiseOnDemand]: 89/132 looper letters, 32 selfloop transitions, 78 changer transitions 2/118 dead transitions. [2021-03-25 18:15:45,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 118 transitions, 2075 flow [2021-03-25 18:15:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:45,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:45,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2021-03-25 18:15:45,972 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17676767676767677 [2021-03-25 18:15:45,972 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 140 transitions. [2021-03-25 18:15:45,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 140 transitions. [2021-03-25 18:15:45,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:45,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 140 transitions. [2021-03-25 18:15:45,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 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 18:15:45,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 132.0) internal successors, (924), 7 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:45,974 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 132.0) internal successors, (924), 7 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:45,974 INFO L185 Difference]: Start difference. First operand has 130 places, 114 transitions, 1499 flow. Second operand 6 states and 140 transitions. [2021-03-25 18:15:45,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 118 transitions, 2075 flow [2021-03-25 18:15:46,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 118 transitions, 1852 flow, removed 49 selfloop flow, removed 8 redundant places. [2021-03-25 18:15:46,031 INFO L241 Difference]: Finished difference. Result has 129 places, 116 transitions, 1621 flow [2021-03-25 18:15:46,031 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1621, PETRI_PLACES=129, PETRI_TRANSITIONS=116} [2021-03-25 18:15:46,031 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 114 predicate places. [2021-03-25 18:15:46,031 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:46,032 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 116 transitions, 1621 flow [2021-03-25 18:15:46,032 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 116 transitions, 1621 flow [2021-03-25 18:15:46,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 116 transitions, 1621 flow [2021-03-25 18:15:46,054 INFO L129 PetriNetUnfolder]: 97/216 cut-off events. [2021-03-25 18:15:46,054 INFO L130 PetriNetUnfolder]: For 10960/10961 co-relation queries the response was YES. [2021-03-25 18:15:46,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 216 events. 97/216 cut-off events. For 10960/10961 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1070 event pairs, 1 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 1799. Up to 146 conditions per place. [2021-03-25 18:15:46,057 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:46,115 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:46,115 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:46,115 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 18:15:46,115 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 116 transitions, 1622 flow [2021-03-25 18:15:46,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:46,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:46,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:46,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:46,337 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:46,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:46,338 INFO L82 PathProgramCache]: Analyzing trace with hash 657386248, now seen corresponding path program 1 times [2021-03-25 18:15:46,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:46,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101895918] [2021-03-25 18:15:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:46,344 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:46,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:46,359 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:46,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:46,369 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:46,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:46,377 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 18:15:46,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101895918] [2021-03-25 18:15:46,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915076431] [2021-03-25 18:15:46,378 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 18:15:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:46,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 18:15:46,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:46,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:46,407 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:46,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:46,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:46,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:46,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:46,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:46,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:46,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:46,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:46,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:46,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:46,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:46,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:46,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:46,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:15:46,446 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 18:15:46,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:46,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:46,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:15:46,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 18:15:46,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:46,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:46,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:46,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:46,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:46,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:46,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:46,475 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 18:15:46,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:46,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:46,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089298561] [2021-03-25 18:15:46,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:46,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:46,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:46,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:46,476 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 133 [2021-03-25 18:15:46,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 116 transitions, 1622 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:46,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:46,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 133 [2021-03-25 18:15:46,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:46,746 INFO L129 PetriNetUnfolder]: 100/225 cut-off events. [2021-03-25 18:15:46,746 INFO L130 PetriNetUnfolder]: For 10011/10051 co-relation queries the response was YES. [2021-03-25 18:15:46,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2237 conditions, 225 events. 100/225 cut-off events. For 10011/10051 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1116 event pairs, 1 based on Foata normal form. 42/267 useless extension candidates. Maximal degree in co-relation 2163. Up to 203 conditions per place. [2021-03-25 18:15:46,747 INFO L132 encePairwiseOnDemand]: 88/133 looper letters, 69 selfloop transitions, 45 changer transitions 2/120 dead transitions. [2021-03-25 18:15:46,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 120 transitions, 2058 flow [2021-03-25 18:15:46,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 18:15:46,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 18:15:46,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 144 transitions. [2021-03-25 18:15:46,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13533834586466165 [2021-03-25 18:15:46,748 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 144 transitions. [2021-03-25 18:15:46,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 144 transitions. [2021-03-25 18:15:46,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:46,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 144 transitions. [2021-03-25 18:15:46,749 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 18:15:46,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 133.0) internal successors, (1197), 9 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:46,750 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 133.0) internal successors, (1197), 9 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:46,750 INFO L185 Difference]: Start difference. First operand has 128 places, 116 transitions, 1622 flow. Second operand 8 states and 144 transitions. [2021-03-25 18:15:46,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 120 transitions, 2058 flow [2021-03-25 18:15:46,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 120 transitions, 1744 flow, removed 80 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:46,794 INFO L241 Difference]: Finished difference. Result has 135 places, 118 transitions, 1588 flow [2021-03-25 18:15:46,795 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1588, PETRI_PLACES=135, PETRI_TRANSITIONS=118} [2021-03-25 18:15:46,795 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 120 predicate places. [2021-03-25 18:15:46,795 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:46,795 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 118 transitions, 1588 flow [2021-03-25 18:15:46,795 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 118 transitions, 1588 flow [2021-03-25 18:15:46,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 118 transitions, 1588 flow [2021-03-25 18:15:46,811 INFO L129 PetriNetUnfolder]: 98/218 cut-off events. [2021-03-25 18:15:46,811 INFO L130 PetriNetUnfolder]: For 9254/9260 co-relation queries the response was YES. [2021-03-25 18:15:46,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 218 events. 98/218 cut-off events. For 9254/9260 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1090 event pairs, 0 based on Foata normal form. 1/219 useless extension candidates. Maximal degree in co-relation 1783. Up to 147 conditions per place. [2021-03-25 18:15:46,812 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 18:15:46,900 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 18:15:46,900 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:15:46,900 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 105 [2021-03-25 18:15:46,900 INFO L480 AbstractCegarLoop]: Abstraction has has 131 places, 116 transitions, 1490 flow [2021-03-25 18:15:46,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:46,900 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:46,900 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:47,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:47,101 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:47,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:47,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1862275776, now seen corresponding path program 1 times [2021-03-25 18:15:47,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:47,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615897616] [2021-03-25 18:15:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:47,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,115 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:47,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:47,141 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:47,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:47,157 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 18:15:47,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615897616] [2021-03-25 18:15:47,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308476478] [2021-03-25 18:15:47,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:15:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:47,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:47,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:47,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:47,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:47,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:47,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:47,197 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:47,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:47,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:47,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:47,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:47,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:47,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:47,216 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 18:15:47,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:47,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:47,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333990902] [2021-03-25 18:15:47,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:47,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:47,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:47,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:47,217 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 135 [2021-03-25 18:15:47,217 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 116 transitions, 1490 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:47,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:47,217 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 135 [2021-03-25 18:15:47,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:47,463 INFO L129 PetriNetUnfolder]: 101/225 cut-off events. [2021-03-25 18:15:47,463 INFO L130 PetriNetUnfolder]: For 13911/13916 co-relation queries the response was YES. [2021-03-25 18:15:47,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2266 conditions, 225 events. 101/225 cut-off events. For 13911/13916 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1112 event pairs, 0 based on Foata normal form. 1/226 useless extension candidates. Maximal degree in co-relation 2185. Up to 152 conditions per place. [2021-03-25 18:15:47,465 INFO L132 encePairwiseOnDemand]: 91/135 looper letters, 32 selfloop transitions, 80 changer transitions 2/120 dead transitions. [2021-03-25 18:15:47,465 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 120 transitions, 2078 flow [2021-03-25 18:15:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:47,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:47,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2021-03-25 18:15:47,466 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17407407407407408 [2021-03-25 18:15:47,466 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 141 transitions. [2021-03-25 18:15:47,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 141 transitions. [2021-03-25 18:15:47,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:47,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 141 transitions. [2021-03-25 18:15:47,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:47,467 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 18:15:47,467 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 18:15:47,467 INFO L185 Difference]: Start difference. First operand has 131 places, 116 transitions, 1490 flow. Second operand 6 states and 141 transitions. [2021-03-25 18:15:47,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 120 transitions, 2078 flow [2021-03-25 18:15:47,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 120 transitions, 1892 flow, removed 50 selfloop flow, removed 7 redundant places. [2021-03-25 18:15:47,507 INFO L241 Difference]: Finished difference. Result has 131 places, 118 transitions, 1657 flow [2021-03-25 18:15:47,507 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1657, PETRI_PLACES=131, PETRI_TRANSITIONS=118} [2021-03-25 18:15:47,508 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 116 predicate places. [2021-03-25 18:15:47,508 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:47,508 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 118 transitions, 1657 flow [2021-03-25 18:15:47,508 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 118 transitions, 1657 flow [2021-03-25 18:15:47,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 118 transitions, 1657 flow [2021-03-25 18:15:47,524 INFO L129 PetriNetUnfolder]: 99/220 cut-off events. [2021-03-25 18:15:47,524 INFO L130 PetriNetUnfolder]: For 11467/11467 co-relation queries the response was YES. [2021-03-25 18:15:47,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1911 conditions, 220 events. 99/220 cut-off events. For 11467/11467 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1086 event pairs, 1 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 1841. Up to 150 conditions per place. [2021-03-25 18:15:47,526 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:47,569 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:47,569 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:47,569 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-03-25 18:15:47,570 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 118 transitions, 1658 flow [2021-03-25 18:15:47,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:47,570 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:47,570 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:47,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-03-25 18:15:47,771 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:47,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:47,771 INFO L82 PathProgramCache]: Analyzing trace with hash -103287115, now seen corresponding path program 1 times [2021-03-25 18:15:47,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:47,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071963568] [2021-03-25 18:15:47,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:47,784 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:47,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:47,800 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:47,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:47,811 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:47,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:47,820 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 18:15:47,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071963568] [2021-03-25 18:15:47,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974946944] [2021-03-25 18:15:47,821 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 18:15:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:47,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:47,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:47,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:47,852 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:47,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:47,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:47,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:47,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:47,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:47,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:47,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:47,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:47,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:47,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:47,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,877 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size 37 [2021-03-25 18:15:47,878 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-03-25 18:15:47,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:47,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:47,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 18:15:47,895 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-03-25 18:15:47,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:15:47,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:47,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 18:15:47,922 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 18:15:47,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:47,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:47,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828199619] [2021-03-25 18:15:47,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:47,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:47,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:47,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:47,923 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 136 [2021-03-25 18:15:47,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 118 transitions, 1658 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:47,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:47,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 136 [2021-03-25 18:15:47,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:48,174 INFO L129 PetriNetUnfolder]: 102/232 cut-off events. [2021-03-25 18:15:48,174 INFO L130 PetriNetUnfolder]: For 10475/10516 co-relation queries the response was YES. [2021-03-25 18:15:48,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 232 events. 102/232 cut-off events. For 10475/10516 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1175 event pairs, 1 based on Foata normal form. 44/276 useless extension candidates. Maximal degree in co-relation 2267. Up to 207 conditions per place. [2021-03-25 18:15:48,177 INFO L132 encePairwiseOnDemand]: 90/136 looper letters, 70 selfloop transitions, 47 changer transitions 3/124 dead transitions. [2021-03-25 18:15:48,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 124 transitions, 2210 flow [2021-03-25 18:15:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:48,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 168 transitions. [2021-03-25 18:15:48,178 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12352941176470589 [2021-03-25 18:15:48,178 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 168 transitions. [2021-03-25 18:15:48,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 168 transitions. [2021-03-25 18:15:48,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:48,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 168 transitions. [2021-03-25 18:15:48,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.8) internal successors, (168), 10 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 18:15:48,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:48,180 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:48,180 INFO L185 Difference]: Start difference. First operand has 130 places, 118 transitions, 1658 flow. Second operand 10 states and 168 transitions. [2021-03-25 18:15:48,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 124 transitions, 2210 flow [2021-03-25 18:15:48,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 124 transitions, 1888 flow, removed 82 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:48,223 INFO L241 Difference]: Finished difference. Result has 141 places, 121 transitions, 1720 flow [2021-03-25 18:15:48,223 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1720, PETRI_PLACES=141, PETRI_TRANSITIONS=121} [2021-03-25 18:15:48,223 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 126 predicate places. [2021-03-25 18:15:48,223 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:48,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 121 transitions, 1720 flow [2021-03-25 18:15:48,224 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 121 transitions, 1720 flow [2021-03-25 18:15:48,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 138 places, 121 transitions, 1720 flow [2021-03-25 18:15:48,248 INFO L129 PetriNetUnfolder]: 100/223 cut-off events. [2021-03-25 18:15:48,248 INFO L130 PetriNetUnfolder]: For 9982/9988 co-relation queries the response was YES. [2021-03-25 18:15:48,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 223 events. 100/223 cut-off events. For 9982/9988 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1100 event pairs, 0 based on Foata normal form. 1/224 useless extension candidates. Maximal degree in co-relation 1912. Up to 152 conditions per place. [2021-03-25 18:15:48,251 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:48,412 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:48,412 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:48,412 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 189 [2021-03-25 18:15:48,412 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 118 transitions, 1528 flow [2021-03-25 18:15:48,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:48,413 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:48,413 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:48,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-03-25 18:15:48,613 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:48,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:48,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1776388323, now seen corresponding path program 1 times [2021-03-25 18:15:48,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:48,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485203362] [2021-03-25 18:15:48,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:48,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,627 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:48,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:48,655 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:48,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:48,670 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 18:15:48,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485203362] [2021-03-25 18:15:48,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029000157] [2021-03-25 18:15:48,670 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 18:15:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:48,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:48,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:48,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:48,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:48,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:48,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:48,710 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:48,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:48,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:48,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:48,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:48,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:48,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:48,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:48,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:48,726 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 18:15:48,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:48,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:48,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668581728] [2021-03-25 18:15:48,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:48,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:48,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:48,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:48,728 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 139 [2021-03-25 18:15:48,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 118 transitions, 1528 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:48,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:48,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 139 [2021-03-25 18:15:48,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:49,011 INFO L129 PetriNetUnfolder]: 103/229 cut-off events. [2021-03-25 18:15:49,011 INFO L130 PetriNetUnfolder]: For 14895/14900 co-relation queries the response was YES. [2021-03-25 18:15:49,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2366 conditions, 229 events. 103/229 cut-off events. For 14895/14900 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1138 event pairs, 0 based on Foata normal form. 1/230 useless extension candidates. Maximal degree in co-relation 2278. Up to 156 conditions per place. [2021-03-25 18:15:49,016 INFO L132 encePairwiseOnDemand]: 94/139 looper letters, 32 selfloop transitions, 82 changer transitions 2/122 dead transitions. [2021-03-25 18:15:49,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 122 transitions, 2128 flow [2021-03-25 18:15:49,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2021-03-25 18:15:49,020 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17026378896882494 [2021-03-25 18:15:49,020 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 142 transitions. [2021-03-25 18:15:49,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 142 transitions. [2021-03-25 18:15:49,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:49,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 142 transitions. [2021-03-25 18:15:49,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 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 18:15:49,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:49,022 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:49,022 INFO L185 Difference]: Start difference. First operand has 135 places, 118 transitions, 1528 flow. Second operand 6 states and 142 transitions. [2021-03-25 18:15:49,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 122 transitions, 2128 flow [2021-03-25 18:15:49,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 122 transitions, 1932 flow, removed 54 selfloop flow, removed 9 redundant places. [2021-03-25 18:15:49,067 INFO L241 Difference]: Finished difference. Result has 133 places, 120 transitions, 1693 flow [2021-03-25 18:15:49,067 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1693, PETRI_PLACES=133, PETRI_TRANSITIONS=120} [2021-03-25 18:15:49,067 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 118 predicate places. [2021-03-25 18:15:49,068 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:49,068 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 120 transitions, 1693 flow [2021-03-25 18:15:49,068 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 120 transitions, 1693 flow [2021-03-25 18:15:49,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 120 transitions, 1693 flow [2021-03-25 18:15:49,091 INFO L129 PetriNetUnfolder]: 102/225 cut-off events. [2021-03-25 18:15:49,092 INFO L130 PetriNetUnfolder]: For 13393/13394 co-relation queries the response was YES. [2021-03-25 18:15:49,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2001 conditions, 225 events. 102/225 cut-off events. For 13393/13394 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1121 event pairs, 1 based on Foata normal form. 1/226 useless extension candidates. Maximal degree in co-relation 1930. Up to 154 conditions per place. [2021-03-25 18:15:49,094 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:49,143 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:49,144 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:49,144 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-25 18:15:49,144 INFO L480 AbstractCegarLoop]: Abstraction has has 132 places, 120 transitions, 1694 flow [2021-03-25 18:15:49,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:49,144 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:49,144 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:49,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:49,344 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:49,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:49,345 INFO L82 PathProgramCache]: Analyzing trace with hash -99679521, now seen corresponding path program 1 times [2021-03-25 18:15:49,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:49,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980847699] [2021-03-25 18:15:49,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:49,351 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:49,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:49,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:49,365 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:49,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:49,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:49,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:49,381 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 18:15:49,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980847699] [2021-03-25 18:15:49,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819965334] [2021-03-25 18:15:49,381 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 18:15:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:49,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:49,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:49,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:49,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:49,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:49,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:49,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:49,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:49,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:49,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:49,413 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:49,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:49,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:49,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:49,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:49,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:49,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:49,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:49,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:49,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:49,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:49,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,433 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-03-25 18:15:49,433 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.9 percent of original size [2021-03-25 18:15:49,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:49,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:49,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:49,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:49,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:49,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:49,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 18:15:49,454 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-03-25 18:15:49,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:49,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:49,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:49,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:49,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:49,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:49,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:49,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:49,476 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 18:15:49,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:49,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:49,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634999600] [2021-03-25 18:15:49,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:49,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:49,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:49,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:49,476 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 140 [2021-03-25 18:15:49,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 120 transitions, 1694 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:49,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:49,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 140 [2021-03-25 18:15:49,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:49,765 INFO L129 PetriNetUnfolder]: 104/236 cut-off events. [2021-03-25 18:15:49,765 INFO L130 PetriNetUnfolder]: For 10765/10765 co-relation queries the response was YES. [2021-03-25 18:15:49,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 236 events. 104/236 cut-off events. For 10765/10765 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1194 event pairs, 1 based on Foata normal form. 3/239 useless extension candidates. Maximal degree in co-relation 2317. Up to 211 conditions per place. [2021-03-25 18:15:49,767 INFO L132 encePairwiseOnDemand]: 93/140 looper letters, 71 selfloop transitions, 48 changer transitions 3/126 dead transitions. [2021-03-25 18:15:49,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 126 transitions, 2256 flow [2021-03-25 18:15:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:49,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 169 transitions. [2021-03-25 18:15:49,768 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12071428571428572 [2021-03-25 18:15:49,768 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 169 transitions. [2021-03-25 18:15:49,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 169 transitions. [2021-03-25 18:15:49,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:49,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 169 transitions. [2021-03-25 18:15:49,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.9) internal successors, (169), 10 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 18:15:49,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:49,770 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:49,770 INFO L185 Difference]: Start difference. First operand has 132 places, 120 transitions, 1694 flow. Second operand 10 states and 169 transitions. [2021-03-25 18:15:49,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 126 transitions, 2256 flow [2021-03-25 18:15:49,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 126 transitions, 1970 flow, removed 84 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:49,816 INFO L241 Difference]: Finished difference. Result has 144 places, 123 transitions, 1800 flow [2021-03-25 18:15:49,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1408, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1800, PETRI_PLACES=144, PETRI_TRANSITIONS=123} [2021-03-25 18:15:49,816 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 129 predicate places. [2021-03-25 18:15:49,816 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:49,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 123 transitions, 1800 flow [2021-03-25 18:15:49,816 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 123 transitions, 1800 flow [2021-03-25 18:15:49,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 123 transitions, 1800 flow [2021-03-25 18:15:49,834 INFO L129 PetriNetUnfolder]: 102/227 cut-off events. [2021-03-25 18:15:49,834 INFO L130 PetriNetUnfolder]: For 10521/10527 co-relation queries the response was YES. [2021-03-25 18:15:49,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2040 conditions, 227 events. 102/227 cut-off events. For 10521/10527 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1136 event pairs, 0 based on Foata normal form. 1/228 useless extension candidates. Maximal degree in co-relation 1956. Up to 156 conditions per place. [2021-03-25 18:15:49,836 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:49,960 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:49,960 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:49,961 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 145 [2021-03-25 18:15:49,961 INFO L480 AbstractCegarLoop]: Abstraction has has 138 places, 120 transitions, 1604 flow [2021-03-25 18:15:49,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:49,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:49,961 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:50,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:50,161 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:50,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:50,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1661871719, now seen corresponding path program 1 times [2021-03-25 18:15:50,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:50,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762284164] [2021-03-25 18:15:50,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:50,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,180 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:50,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:50,213 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:50,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:50,224 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 18:15:50,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762284164] [2021-03-25 18:15:50,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967361009] [2021-03-25 18:15:50,225 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 18:15:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:50,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:50,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:50,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:50,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:50,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:50,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:50,282 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:50,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:50,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:50,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:50,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:50,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:50,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:50,296 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 18:15:50,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:50,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:50,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181821404] [2021-03-25 18:15:50,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:50,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:50,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:50,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:50,297 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 143 [2021-03-25 18:15:50,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 120 transitions, 1604 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:50,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:50,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 143 [2021-03-25 18:15:50,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:50,531 INFO L129 PetriNetUnfolder]: 105/233 cut-off events. [2021-03-25 18:15:50,531 INFO L130 PetriNetUnfolder]: For 15713/15718 co-relation queries the response was YES. [2021-03-25 18:15:50,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2418 conditions, 233 events. 105/233 cut-off events. For 15713/15718 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1169 event pairs, 0 based on Foata normal form. 1/234 useless extension candidates. Maximal degree in co-relation 2329. Up to 160 conditions per place. [2021-03-25 18:15:50,535 INFO L132 encePairwiseOnDemand]: 97/143 looper letters, 32 selfloop transitions, 84 changer transitions 2/124 dead transitions. [2021-03-25 18:15:50,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 124 transitions, 2216 flow [2021-03-25 18:15:50,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 143 transitions. [2021-03-25 18:15:50,536 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16666666666666666 [2021-03-25 18:15:50,536 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 143 transitions. [2021-03-25 18:15:50,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 143 transitions. [2021-03-25 18:15:50,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:50,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 143 transitions. [2021-03-25 18:15:50,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:50,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:50,537 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:50,537 INFO L185 Difference]: Start difference. First operand has 138 places, 120 transitions, 1604 flow. Second operand 6 states and 143 transitions. [2021-03-25 18:15:50,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 124 transitions, 2216 flow [2021-03-25 18:15:50,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 124 transitions, 1972 flow, removed 55 selfloop flow, removed 10 redundant places. [2021-03-25 18:15:50,590 INFO L241 Difference]: Finished difference. Result has 135 places, 122 transitions, 1729 flow [2021-03-25 18:15:50,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=1364, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1729, PETRI_PLACES=135, PETRI_TRANSITIONS=122} [2021-03-25 18:15:50,590 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 120 predicate places. [2021-03-25 18:15:50,590 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:50,590 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 122 transitions, 1729 flow [2021-03-25 18:15:50,590 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 122 transitions, 1729 flow [2021-03-25 18:15:50,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 122 transitions, 1729 flow [2021-03-25 18:15:50,613 INFO L129 PetriNetUnfolder]: 103/228 cut-off events. [2021-03-25 18:15:50,614 INFO L130 PetriNetUnfolder]: For 12764/12766 co-relation queries the response was YES. [2021-03-25 18:15:50,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1997 conditions, 228 events. 103/228 cut-off events. For 12764/12766 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1172 event pairs, 1 based on Foata normal form. 2/230 useless extension candidates. Maximal degree in co-relation 1925. Up to 158 conditions per place. [2021-03-25 18:15:50,616 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:50,669 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:50,669 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:50,669 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-25 18:15:50,669 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 122 transitions, 1730 flow [2021-03-25 18:15:50,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:50,669 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:50,669 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:50,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:50,890 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:50,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:50,890 INFO L82 PathProgramCache]: Analyzing trace with hash -95898947, now seen corresponding path program 1 times [2021-03-25 18:15:50,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:50,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376161342] [2021-03-25 18:15:50,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:50,897 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:50,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:50,911 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:50,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:50,922 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:50,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:50,936 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 18:15:50,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376161342] [2021-03-25 18:15:50,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711529729] [2021-03-25 18:15:50,936 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 18:15:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:50,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:50,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:50,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:50,964 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:50,964 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-03-25 18:15:50,964 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-03-25 18:15:50,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:50,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:50,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:50,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:50,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:50,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:50,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:50,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:50,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:50,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,980 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.4 percent of original size 39 [2021-03-25 18:15:50,981 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.3 percent of original size [2021-03-25 18:15:50,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 18:15:50,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 18:15:50,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:50,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 18:15:50,999 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-03-25 18:15:50,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 18:15:51,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:51,027 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 18:15:51,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:51,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:51,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083444371] [2021-03-25 18:15:51,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:51,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:51,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:51,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:51,028 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 144 [2021-03-25 18:15:51,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 122 transitions, 1730 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:51,028 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:51,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 144 [2021-03-25 18:15:51,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:51,344 INFO L129 PetriNetUnfolder]: 106/240 cut-off events. [2021-03-25 18:15:51,344 INFO L130 PetriNetUnfolder]: For 11230/11230 co-relation queries the response was YES. [2021-03-25 18:15:51,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2444 conditions, 240 events. 106/240 cut-off events. For 11230/11230 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1213 event pairs, 1 based on Foata normal form. 3/243 useless extension candidates. Maximal degree in co-relation 2367. Up to 215 conditions per place. [2021-03-25 18:15:51,346 INFO L132 encePairwiseOnDemand]: 96/144 looper letters, 72 selfloop transitions, 49 changer transitions 3/128 dead transitions. [2021-03-25 18:15:51,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 128 transitions, 2302 flow [2021-03-25 18:15:51,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:51,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 170 transitions. [2021-03-25 18:15:51,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11805555555555555 [2021-03-25 18:15:51,347 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 170 transitions. [2021-03-25 18:15:51,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 170 transitions. [2021-03-25 18:15:51,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:51,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 170 transitions. [2021-03-25 18:15:51,347 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 18:15:51,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 144.0) internal successors, (1584), 11 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:51,348 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 144.0) internal successors, (1584), 11 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:51,349 INFO L185 Difference]: Start difference. First operand has 134 places, 122 transitions, 1730 flow. Second operand 10 states and 170 transitions. [2021-03-25 18:15:51,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 128 transitions, 2302 flow [2021-03-25 18:15:51,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 128 transitions, 1964 flow, removed 86 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:51,381 INFO L241 Difference]: Finished difference. Result has 145 places, 125 transitions, 1792 flow [2021-03-25 18:15:51,381 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1792, PETRI_PLACES=145, PETRI_TRANSITIONS=125} [2021-03-25 18:15:51,381 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 130 predicate places. [2021-03-25 18:15:51,381 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:51,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 125 transitions, 1792 flow [2021-03-25 18:15:51,382 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 125 transitions, 1792 flow [2021-03-25 18:15:51,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 125 transitions, 1792 flow [2021-03-25 18:15:51,399 INFO L129 PetriNetUnfolder]: 104/231 cut-off events. [2021-03-25 18:15:51,400 INFO L130 PetriNetUnfolder]: For 11262/11333 co-relation queries the response was YES. [2021-03-25 18:15:51,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2083 conditions, 231 events. 104/231 cut-off events. For 11262/11333 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1176 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 1998. Up to 160 conditions per place. [2021-03-25 18:15:51,401 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:51,536 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:51,536 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:51,536 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 155 [2021-03-25 18:15:51,536 INFO L480 AbstractCegarLoop]: Abstraction has has 139 places, 122 transitions, 1592 flow [2021-03-25 18:15:51,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:51,537 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:51,537 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:51,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:51,737 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:51,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:51,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1547355115, now seen corresponding path program 1 times [2021-03-25 18:15:51,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:51,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145264108] [2021-03-25 18:15:51,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:51,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,780 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:51,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:51,812 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:51,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:51,825 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 18:15:51,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145264108] [2021-03-25 18:15:51,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527684647] [2021-03-25 18:15:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:15:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:51,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:51,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:51,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:51,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:51,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:51,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:51,864 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:51,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:51,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:51,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:51,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:51,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:51,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:51,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:51,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:51,893 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 18:15:51,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:51,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:51,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570377370] [2021-03-25 18:15:51,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:51,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:51,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:51,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:51,894 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 147 [2021-03-25 18:15:51,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 122 transitions, 1592 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:51,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:51,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 147 [2021-03-25 18:15:51,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:52,126 INFO L129 PetriNetUnfolder]: 106/236 cut-off events. [2021-03-25 18:15:52,126 INFO L130 PetriNetUnfolder]: For 13959/13964 co-relation queries the response was YES. [2021-03-25 18:15:52,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2419 conditions, 236 events. 106/236 cut-off events. For 13959/13964 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1197 event pairs, 0 based on Foata normal form. 1/237 useless extension candidates. Maximal degree in co-relation 2329. Up to 164 conditions per place. [2021-03-25 18:15:52,129 INFO L132 encePairwiseOnDemand]: 100/147 looper letters, 32 selfloop transitions, 86 changer transitions 2/126 dead transitions. [2021-03-25 18:15:52,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 126 transitions, 2216 flow [2021-03-25 18:15:52,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:52,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2021-03-25 18:15:52,134 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16326530612244897 [2021-03-25 18:15:52,134 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 144 transitions. [2021-03-25 18:15:52,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 144 transitions. [2021-03-25 18:15:52,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:52,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 144 transitions. [2021-03-25 18:15:52,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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 18:15:52,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:52,143 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:52,143 INFO L185 Difference]: Start difference. First operand has 139 places, 122 transitions, 1592 flow. Second operand 6 states and 144 transitions. [2021-03-25 18:15:52,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 126 transitions, 2216 flow [2021-03-25 18:15:52,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 126 transitions, 2012 flow, removed 56 selfloop flow, removed 9 redundant places. [2021-03-25 18:15:52,184 INFO L241 Difference]: Finished difference. Result has 137 places, 124 transitions, 1765 flow [2021-03-25 18:15:52,184 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1765, PETRI_PLACES=137, PETRI_TRANSITIONS=124} [2021-03-25 18:15:52,184 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 122 predicate places. [2021-03-25 18:15:52,184 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:52,184 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 124 transitions, 1765 flow [2021-03-25 18:15:52,184 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 124 transitions, 1765 flow [2021-03-25 18:15:52,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 124 transitions, 1765 flow [2021-03-25 18:15:52,202 INFO L129 PetriNetUnfolder]: 105/232 cut-off events. [2021-03-25 18:15:52,202 INFO L130 PetriNetUnfolder]: For 13373/13374 co-relation queries the response was YES. [2021-03-25 18:15:52,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2040 conditions, 232 events. 105/232 cut-off events. For 13373/13374 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1160 event pairs, 1 based on Foata normal form. 1/233 useless extension candidates. Maximal degree in co-relation 1967. Up to 162 conditions per place. [2021-03-25 18:15:52,204 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:52,247 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:52,248 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:52,248 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-25 18:15:52,248 INFO L480 AbstractCegarLoop]: Abstraction has has 136 places, 124 transitions, 1766 flow [2021-03-25 18:15:52,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:52,248 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:52,248 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:52,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:52,452 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:52,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:52,452 INFO L82 PathProgramCache]: Analyzing trace with hash -92204863, now seen corresponding path program 1 times [2021-03-25 18:15:52,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:52,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886761205] [2021-03-25 18:15:52,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:52,464 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:52,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:52,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:52,477 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:52,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:52,486 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:52,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:52,494 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 18:15:52,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886761205] [2021-03-25 18:15:52,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734470510] [2021-03-25 18:15:52,494 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 18:15:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:52,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:52,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:52,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:52,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:52,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:52,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:52,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:52,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:52,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:52,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:52,517 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:52,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:52,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:52,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:15:52,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:15:52,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:52,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:52,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:52,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:52,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:52,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:15:52,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,533 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-03-25 18:15:52,534 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.9 percent of original size [2021-03-25 18:15:52,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:52,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:52,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:52,548 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 18:15:52,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:52,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:52,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:52,571 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 18:15:52,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:52,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:52,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645061741] [2021-03-25 18:15:52,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:52,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:52,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:52,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:52,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 148 [2021-03-25 18:15:52,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 124 transitions, 1766 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:52,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:52,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 148 [2021-03-25 18:15:52,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:52,840 INFO L129 PetriNetUnfolder]: 108/244 cut-off events. [2021-03-25 18:15:52,841 INFO L130 PetriNetUnfolder]: For 11705/11705 co-relation queries the response was YES. [2021-03-25 18:15:52,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2495 conditions, 244 events. 108/244 cut-off events. For 11705/11705 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1239 event pairs, 1 based on Foata normal form. 3/247 useless extension candidates. Maximal degree in co-relation 2417. Up to 219 conditions per place. [2021-03-25 18:15:52,843 INFO L132 encePairwiseOnDemand]: 99/148 looper letters, 73 selfloop transitions, 50 changer transitions 3/130 dead transitions. [2021-03-25 18:15:52,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 130 transitions, 2348 flow [2021-03-25 18:15:52,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 171 transitions. [2021-03-25 18:15:52,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11554054054054054 [2021-03-25 18:15:52,844 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 171 transitions. [2021-03-25 18:15:52,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 171 transitions. [2021-03-25 18:15:52,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:52,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 171 transitions. [2021-03-25 18:15:52,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:52,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 148.0) internal successors, (1628), 11 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:52,845 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 148.0) internal successors, (1628), 11 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:52,845 INFO L185 Difference]: Start difference. First operand has 136 places, 124 transitions, 1766 flow. Second operand 10 states and 171 transitions. [2021-03-25 18:15:52,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 130 transitions, 2348 flow [2021-03-25 18:15:52,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 130 transitions, 2002 flow, removed 88 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:52,884 INFO L241 Difference]: Finished difference. Result has 147 places, 127 transitions, 1828 flow [2021-03-25 18:15:52,884 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=1420, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1828, PETRI_PLACES=147, PETRI_TRANSITIONS=127} [2021-03-25 18:15:52,884 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 132 predicate places. [2021-03-25 18:15:52,884 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:52,884 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 127 transitions, 1828 flow [2021-03-25 18:15:52,884 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 127 transitions, 1828 flow [2021-03-25 18:15:52,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 127 transitions, 1828 flow [2021-03-25 18:15:52,903 INFO L129 PetriNetUnfolder]: 106/235 cut-off events. [2021-03-25 18:15:52,903 INFO L130 PetriNetUnfolder]: For 11975/12056 co-relation queries the response was YES. [2021-03-25 18:15:52,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2127 conditions, 235 events. 106/235 cut-off events. For 11975/12056 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1204 event pairs, 0 based on Foata normal form. 1/236 useless extension candidates. Maximal degree in co-relation 2041. Up to 164 conditions per place. [2021-03-25 18:15:52,905 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:53,026 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:53,026 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:53,027 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-03-25 18:15:53,027 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 124 transitions, 1624 flow [2021-03-25 18:15:53,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:53,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:53,027 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:53,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-03-25 18:15:53,232 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:53,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1432752021, now seen corresponding path program 1 times [2021-03-25 18:15:53,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:53,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031976057] [2021-03-25 18:15:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:53,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,245 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:53,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:53,271 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:53,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:53,287 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 18:15:53,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031976057] [2021-03-25 18:15:53,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608692651] [2021-03-25 18:15:53,287 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 18:15:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:53,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:53,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:53,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:53,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:53,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:53,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:53,329 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:53,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:53,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:53,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:53,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:53,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:53,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:53,344 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 18:15:53,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:53,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:53,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650114436] [2021-03-25 18:15:53,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:53,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:53,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:53,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:53,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 151 [2021-03-25 18:15:53,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 124 transitions, 1624 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:53,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:53,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 151 [2021-03-25 18:15:53,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:53,590 INFO L129 PetriNetUnfolder]: 109/241 cut-off events. [2021-03-25 18:15:53,590 INFO L130 PetriNetUnfolder]: For 16894/16900 co-relation queries the response was YES. [2021-03-25 18:15:53,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2519 conditions, 241 events. 109/241 cut-off events. For 16894/16900 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1225 event pairs, 0 based on Foata normal form. 1/242 useless extension candidates. Maximal degree in co-relation 2428. Up to 168 conditions per place. [2021-03-25 18:15:53,592 INFO L132 encePairwiseOnDemand]: 103/151 looper letters, 32 selfloop transitions, 88 changer transitions 2/128 dead transitions. [2021-03-25 18:15:53,592 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 128 transitions, 2260 flow [2021-03-25 18:15:53,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2021-03-25 18:15:53,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1600441501103753 [2021-03-25 18:15:53,593 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 145 transitions. [2021-03-25 18:15:53,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 145 transitions. [2021-03-25 18:15:53,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:53,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 145 transitions. [2021-03-25 18:15:53,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 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 18:15:53,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:53,594 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:53,594 INFO L185 Difference]: Start difference. First operand has 141 places, 124 transitions, 1624 flow. Second operand 6 states and 145 transitions. [2021-03-25 18:15:53,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 128 transitions, 2260 flow [2021-03-25 18:15:53,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 128 transitions, 2052 flow, removed 57 selfloop flow, removed 9 redundant places. [2021-03-25 18:15:53,649 INFO L241 Difference]: Finished difference. Result has 139 places, 126 transitions, 1801 flow [2021-03-25 18:15:53,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=1420, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1801, PETRI_PLACES=139, PETRI_TRANSITIONS=126} [2021-03-25 18:15:53,650 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 124 predicate places. [2021-03-25 18:15:53,650 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:53,650 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 126 transitions, 1801 flow [2021-03-25 18:15:53,650 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 126 transitions, 1801 flow [2021-03-25 18:15:53,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 138 places, 126 transitions, 1801 flow [2021-03-25 18:15:53,668 INFO L129 PetriNetUnfolder]: 107/236 cut-off events. [2021-03-25 18:15:53,668 INFO L130 PetriNetUnfolder]: For 13945/13946 co-relation queries the response was YES. [2021-03-25 18:15:53,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2083 conditions, 236 events. 107/236 cut-off events. For 13945/13946 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1193 event pairs, 1 based on Foata normal form. 1/237 useless extension candidates. Maximal degree in co-relation 2009. Up to 166 conditions per place. [2021-03-25 18:15:53,670 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:53,718 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:53,718 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:53,718 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-25 18:15:53,718 INFO L480 AbstractCegarLoop]: Abstraction has has 138 places, 126 transitions, 1802 flow [2021-03-25 18:15:53,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:53,719 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:53,719 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:53,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:53,919 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:53,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:53,919 INFO L82 PathProgramCache]: Analyzing trace with hash -88510779, now seen corresponding path program 1 times [2021-03-25 18:15:53,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:53,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688882566] [2021-03-25 18:15:53,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:53,926 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:53,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:53,940 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:53,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:53,951 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:53,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:53,959 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 18:15:53,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688882566] [2021-03-25 18:15:53,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742854599] [2021-03-25 18:15:53,959 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) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:53,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:53,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:53,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,987 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:53,987 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.3 percent of original size 41 [2021-03-25 18:15:53,987 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-03-25 18:15:53,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:53,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:53,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:15:53,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:53,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:53,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:54,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:54,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:54,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:54,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:15:54,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,005 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 49 [2021-03-25 18:15:54,005 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.2 percent of original size [2021-03-25 18:15:54,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:54,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:54,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:15:54,024 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:15:54,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:15:54,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:15:54,055 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 18:15:54,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:54,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:54,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129104400] [2021-03-25 18:15:54,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:54,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:54,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:54,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:54,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 152 [2021-03-25 18:15:54,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 126 transitions, 1802 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:54,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:54,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 152 [2021-03-25 18:15:54,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:54,405 INFO L129 PetriNetUnfolder]: 110/248 cut-off events. [2021-03-25 18:15:54,405 INFO L130 PetriNetUnfolder]: For 12190/12190 co-relation queries the response was YES. [2021-03-25 18:15:54,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2546 conditions, 248 events. 110/248 cut-off events. For 12190/12190 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1277 event pairs, 1 based on Foata normal form. 3/251 useless extension candidates. Maximal degree in co-relation 2467. Up to 223 conditions per place. [2021-03-25 18:15:54,407 INFO L132 encePairwiseOnDemand]: 102/152 looper letters, 74 selfloop transitions, 51 changer transitions 3/132 dead transitions. [2021-03-25 18:15:54,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 132 transitions, 2394 flow [2021-03-25 18:15:54,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:54,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:54,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 172 transitions. [2021-03-25 18:15:54,408 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11315789473684211 [2021-03-25 18:15:54,409 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 172 transitions. [2021-03-25 18:15:54,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 172 transitions. [2021-03-25 18:15:54,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:54,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 172 transitions. [2021-03-25 18:15:54,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:54,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:54,410 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:54,410 INFO L185 Difference]: Start difference. First operand has 138 places, 126 transitions, 1802 flow. Second operand 10 states and 172 transitions. [2021-03-25 18:15:54,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 132 transitions, 2394 flow [2021-03-25 18:15:54,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 132 transitions, 2087 flow, removed 90 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:54,443 INFO L241 Difference]: Finished difference. Result has 150 places, 129 transitions, 1911 flow [2021-03-25 18:15:54,443 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=1495, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1911, PETRI_PLACES=150, PETRI_TRANSITIONS=129} [2021-03-25 18:15:54,443 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 135 predicate places. [2021-03-25 18:15:54,443 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:54,443 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 129 transitions, 1911 flow [2021-03-25 18:15:54,444 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 129 transitions, 1911 flow [2021-03-25 18:15:54,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 129 transitions, 1911 flow [2021-03-25 18:15:54,462 INFO L129 PetriNetUnfolder]: 108/239 cut-off events. [2021-03-25 18:15:54,462 INFO L130 PetriNetUnfolder]: For 12584/12667 co-relation queries the response was YES. [2021-03-25 18:15:54,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2172 conditions, 239 events. 108/239 cut-off events. For 12584/12667 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1239 event pairs, 0 based on Foata normal form. 1/240 useless extension candidates. Maximal degree in co-relation 2085. Up to 168 conditions per place. [2021-03-25 18:15:54,464 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:54,598 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:54,598 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:54,598 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 155 [2021-03-25 18:15:54,598 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 126 transitions, 1703 flow [2021-03-25 18:15:54,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:54,599 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:54,599 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:54,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2021-03-25 18:15:54,804 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:54,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:54,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1318235417, now seen corresponding path program 1 times [2021-03-25 18:15:54,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:54,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025916904] [2021-03-25 18:15:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:54,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,824 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:54,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:54,850 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:54,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:54,866 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 18:15:54,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025916904] [2021-03-25 18:15:54,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758602410] [2021-03-25 18:15:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 18:15:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:54,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:54,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:54,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:54,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:54,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:54,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:54,907 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:54,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:54,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:54,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:54,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:54,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:54,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:54,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:54,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:54,923 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 18:15:54,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:54,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:54,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029083115] [2021-03-25 18:15:54,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:54,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:54,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:54,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:54,924 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 155 [2021-03-25 18:15:54,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 126 transitions, 1703 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:54,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:54,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 155 [2021-03-25 18:15:54,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:55,173 INFO L129 PetriNetUnfolder]: 110/244 cut-off events. [2021-03-25 18:15:55,173 INFO L130 PetriNetUnfolder]: For 15451/15502 co-relation queries the response was YES. [2021-03-25 18:15:55,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2520 conditions, 244 events. 110/244 cut-off events. For 15451/15502 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1237 event pairs, 0 based on Foata normal form. 46/290 useless extension candidates. Maximal degree in co-relation 2428. Up to 172 conditions per place. [2021-03-25 18:15:55,175 INFO L132 encePairwiseOnDemand]: 106/155 looper letters, 32 selfloop transitions, 90 changer transitions 2/130 dead transitions. [2021-03-25 18:15:55,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 130 transitions, 2351 flow [2021-03-25 18:15:55,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:55,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:55,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2021-03-25 18:15:55,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15698924731182795 [2021-03-25 18:15:55,176 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 146 transitions. [2021-03-25 18:15:55,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 146 transitions. [2021-03-25 18:15:55,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:55,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 146 transitions. [2021-03-25 18:15:55,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 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 18:15:55,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:55,177 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:55,177 INFO L185 Difference]: Start difference. First operand has 144 places, 126 transitions, 1703 flow. Second operand 6 states and 146 transitions. [2021-03-25 18:15:55,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 130 transitions, 2351 flow [2021-03-25 18:15:55,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 130 transitions, 2092 flow, removed 58 selfloop flow, removed 10 redundant places. [2021-03-25 18:15:55,232 INFO L241 Difference]: Finished difference. Result has 141 places, 128 transitions, 1837 flow [2021-03-25 18:15:55,233 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1837, PETRI_PLACES=141, PETRI_TRANSITIONS=128} [2021-03-25 18:15:55,233 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 126 predicate places. [2021-03-25 18:15:55,233 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:55,233 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 128 transitions, 1837 flow [2021-03-25 18:15:55,233 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 128 transitions, 1837 flow [2021-03-25 18:15:55,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 128 transitions, 1837 flow [2021-03-25 18:15:55,254 INFO L129 PetriNetUnfolder]: 110/241 cut-off events. [2021-03-25 18:15:55,255 INFO L130 PetriNetUnfolder]: For 16272/16276 co-relation queries the response was YES. [2021-03-25 18:15:55,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2177 conditions, 241 events. 110/241 cut-off events. For 16272/16276 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1216 event pairs, 1 based on Foata normal form. 2/243 useless extension candidates. Maximal degree in co-relation 2102. Up to 170 conditions per place. [2021-03-25 18:15:55,256 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:55,301 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:55,301 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:55,301 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-25 18:15:55,301 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 128 transitions, 1838 flow [2021-03-25 18:15:55,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:55,301 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:55,301 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:55,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-03-25 18:15:55,502 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:55,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:55,502 INFO L82 PathProgramCache]: Analyzing trace with hash -84816695, now seen corresponding path program 1 times [2021-03-25 18:15:55,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:55,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745958053] [2021-03-25 18:15:55,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:55,512 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:55,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:55,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:55,527 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:55,536 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:55,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:55,543 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 18:15:55,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745958053] [2021-03-25 18:15:55,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304456648] [2021-03-25 18:15:55,543 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 18:15:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:55,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:55,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:55,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:55,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:55,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:55,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:55,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:55,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:55,565 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:55,566 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-03-25 18:15:55,566 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-03-25 18:15:55,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:55,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:55,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:55,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:55,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:55,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:55,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:55,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:55,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:15:55,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,583 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.7 percent of original size 45 [2021-03-25 18:15:55,583 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.5 percent of original size [2021-03-25 18:15:55,584 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size 73 [2021-03-25 18:15:55,584 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size [2021-03-25 18:15:55,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 18:15:55,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 18:15:55,603 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.7 percent of original size [2021-03-25 18:15:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-25 18:15:55,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:55,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 18:15:55,647 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 18:15:55,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:55,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:55,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132134834] [2021-03-25 18:15:55,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:55,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:55,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:55,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:55,648 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 156 [2021-03-25 18:15:55,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 128 transitions, 1838 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:55,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:55,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 156 [2021-03-25 18:15:55,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:56,102 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2021-03-25 18:15:56,176 INFO L129 PetriNetUnfolder]: 112/252 cut-off events. [2021-03-25 18:15:56,177 INFO L130 PetriNetUnfolder]: For 12833/12879 co-relation queries the response was YES. [2021-03-25 18:15:56,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2597 conditions, 252 events. 112/252 cut-off events. For 12833/12879 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1287 event pairs, 1 based on Foata normal form. 49/301 useless extension candidates. Maximal degree in co-relation 2517. Up to 227 conditions per place. [2021-03-25 18:15:56,179 INFO L132 encePairwiseOnDemand]: 105/156 looper letters, 75 selfloop transitions, 52 changer transitions 3/134 dead transitions. [2021-03-25 18:15:56,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 134 transitions, 2440 flow [2021-03-25 18:15:56,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:56,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:56,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions. [2021-03-25 18:15:56,181 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11089743589743589 [2021-03-25 18:15:56,181 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 173 transitions. [2021-03-25 18:15:56,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 173 transitions. [2021-03-25 18:15:56,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:56,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 173 transitions. [2021-03-25 18:15:56,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.3) internal successors, (173), 10 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 18:15:56,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 156.0) internal successors, (1716), 11 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:56,182 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 156.0) internal successors, (1716), 11 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:56,182 INFO L185 Difference]: Start difference. First operand has 140 places, 128 transitions, 1838 flow. Second operand 10 states and 173 transitions. [2021-03-25 18:15:56,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 134 transitions, 2440 flow [2021-03-25 18:15:56,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 134 transitions, 2126 flow, removed 92 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:56,232 INFO L241 Difference]: Finished difference. Result has 152 places, 131 transitions, 1948 flow [2021-03-25 18:15:56,232 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1524, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1948, PETRI_PLACES=152, PETRI_TRANSITIONS=131} [2021-03-25 18:15:56,233 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 137 predicate places. [2021-03-25 18:15:56,233 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:56,233 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 131 transitions, 1948 flow [2021-03-25 18:15:56,233 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 131 transitions, 1948 flow [2021-03-25 18:15:56,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 131 transitions, 1948 flow [2021-03-25 18:15:56,259 INFO L129 PetriNetUnfolder]: 110/243 cut-off events. [2021-03-25 18:15:56,260 INFO L130 PetriNetUnfolder]: For 13011/13026 co-relation queries the response was YES. [2021-03-25 18:15:56,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2216 conditions, 243 events. 110/243 cut-off events. For 13011/13026 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1261 event pairs, 0 based on Foata normal form. 2/245 useless extension candidates. Maximal degree in co-relation 2128. Up to 172 conditions per place. [2021-03-25 18:15:56,262 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:56,389 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:56,389 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:56,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 156 [2021-03-25 18:15:56,389 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 128 transitions, 1736 flow [2021-03-25 18:15:56,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:56,389 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:56,389 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:56,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:56,590 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:56,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:56,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1203805303, now seen corresponding path program 1 times [2021-03-25 18:15:56,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:56,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087646072] [2021-03-25 18:15:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:56,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,605 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:56,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:56,631 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:56,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:56,647 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 18:15:56,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087646072] [2021-03-25 18:15:56,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988109473] [2021-03-25 18:15:56,648 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 18:15:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:56,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:56,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:56,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:56,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:56,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:56,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:56,702 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:56,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:56,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:56,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:56,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:56,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:56,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:56,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:56,718 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 18:15:56,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:56,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:56,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774281472] [2021-03-25 18:15:56,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:56,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:56,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:56,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:56,719 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 159 [2021-03-25 18:15:56,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 128 transitions, 1736 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:56,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:56,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 159 [2021-03-25 18:15:56,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:56,947 INFO L129 PetriNetUnfolder]: 113/249 cut-off events. [2021-03-25 18:15:56,947 INFO L130 PetriNetUnfolder]: For 18486/18492 co-relation queries the response was YES. [2021-03-25 18:15:56,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2622 conditions, 249 events. 113/249 cut-off events. For 18486/18492 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1267 event pairs, 0 based on Foata normal form. 1/250 useless extension candidates. Maximal degree in co-relation 2529. Up to 176 conditions per place. [2021-03-25 18:15:56,949 INFO L132 encePairwiseOnDemand]: 109/159 looper letters, 32 selfloop transitions, 92 changer transitions 2/132 dead transitions. [2021-03-25 18:15:56,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 132 transitions, 2396 flow [2021-03-25 18:15:56,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:56,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 147 transitions. [2021-03-25 18:15:56,950 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1540880503144654 [2021-03-25 18:15:56,950 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 147 transitions. [2021-03-25 18:15:56,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 147 transitions. [2021-03-25 18:15:56,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:56,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 147 transitions. [2021-03-25 18:15:56,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.5) internal successors, (147), 6 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 18:15:56,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:56,952 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:56,952 INFO L185 Difference]: Start difference. First operand has 146 places, 128 transitions, 1736 flow. Second operand 6 states and 147 transitions. [2021-03-25 18:15:56,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 132 transitions, 2396 flow [2021-03-25 18:15:56,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 132 transitions, 2132 flow, removed 59 selfloop flow, removed 10 redundant places. [2021-03-25 18:15:56,996 INFO L241 Difference]: Finished difference. Result has 143 places, 130 transitions, 1873 flow [2021-03-25 18:15:56,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=1476, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1873, PETRI_PLACES=143, PETRI_TRANSITIONS=130} [2021-03-25 18:15:56,997 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 128 predicate places. [2021-03-25 18:15:56,997 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:56,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 130 transitions, 1873 flow [2021-03-25 18:15:56,997 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 130 transitions, 1873 flow [2021-03-25 18:15:56,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 130 transitions, 1873 flow [2021-03-25 18:15:57,017 INFO L129 PetriNetUnfolder]: 111/244 cut-off events. [2021-03-25 18:15:57,017 INFO L130 PetriNetUnfolder]: For 15605/15608 co-relation queries the response was YES. [2021-03-25 18:15:57,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2169 conditions, 244 events. 111/244 cut-off events. For 15605/15608 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1264 event pairs, 1 based on Foata normal form. 2/246 useless extension candidates. Maximal degree in co-relation 2093. Up to 174 conditions per place. [2021-03-25 18:15:57,019 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:57,065 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:57,066 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:57,066 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 18:15:57,066 INFO L480 AbstractCegarLoop]: Abstraction has has 142 places, 130 transitions, 1874 flow [2021-03-25 18:15:57,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:57,066 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:57,066 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:57,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:57,267 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:57,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:57,267 INFO L82 PathProgramCache]: Analyzing trace with hash -81122611, now seen corresponding path program 1 times [2021-03-25 18:15:57,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:57,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578981557] [2021-03-25 18:15:57,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:57,282 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:57,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:57,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:57,300 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:57,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:57,312 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:57,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:57,322 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 18:15:57,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578981557] [2021-03-25 18:15:57,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325366143] [2021-03-25 18:15:57,323 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 18:15:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:57,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:57,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:57,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:57,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:57,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:57,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:57,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:57,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:57,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:57,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:57,350 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:57,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:57,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:57,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:57,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:57,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:57,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:57,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:57,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:57,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:57,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:15:57,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,371 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-03-25 18:15:57,372 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.9 percent of original size [2021-03-25 18:15:57,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:57,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:57,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:57,390 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 18:15:57,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:57,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:57,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:57,419 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 18:15:57,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:57,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:57,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889899973] [2021-03-25 18:15:57,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:57,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:57,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:57,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:57,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 160 [2021-03-25 18:15:57,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 130 transitions, 1874 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:57,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:57,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 160 [2021-03-25 18:15:57,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:57,766 INFO L129 PetriNetUnfolder]: 114/256 cut-off events. [2021-03-25 18:15:57,766 INFO L130 PetriNetUnfolder]: For 13190/13190 co-relation queries the response was YES. [2021-03-25 18:15:57,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2648 conditions, 256 events. 114/256 cut-off events. For 13190/13190 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1322 event pairs, 1 based on Foata normal form. 3/259 useless extension candidates. Maximal degree in co-relation 2567. Up to 231 conditions per place. [2021-03-25 18:15:57,768 INFO L132 encePairwiseOnDemand]: 108/160 looper letters, 76 selfloop transitions, 53 changer transitions 3/136 dead transitions. [2021-03-25 18:15:57,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 136 transitions, 2486 flow [2021-03-25 18:15:57,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:57,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:57,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 174 transitions. [2021-03-25 18:15:57,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10875 [2021-03-25 18:15:57,769 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 174 transitions. [2021-03-25 18:15:57,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 174 transitions. [2021-03-25 18:15:57,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:57,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 174 transitions. [2021-03-25 18:15:57,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.4) internal successors, (174), 10 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 18:15:57,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 160.0) internal successors, (1760), 11 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:57,770 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 160.0) internal successors, (1760), 11 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:57,770 INFO L185 Difference]: Start difference. First operand has 142 places, 130 transitions, 1874 flow. Second operand 10 states and 174 transitions. [2021-03-25 18:15:57,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 136 transitions, 2486 flow [2021-03-25 18:15:57,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 136 transitions, 2116 flow, removed 94 selfloop flow, removed 4 redundant places. [2021-03-25 18:15:57,813 INFO L241 Difference]: Finished difference. Result has 153 places, 133 transitions, 1936 flow [2021-03-25 18:15:57,813 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1504, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1936, PETRI_PLACES=153, PETRI_TRANSITIONS=133} [2021-03-25 18:15:57,813 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 138 predicate places. [2021-03-25 18:15:57,813 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:57,813 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 133 transitions, 1936 flow [2021-03-25 18:15:57,813 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 133 transitions, 1936 flow [2021-03-25 18:15:57,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 133 transitions, 1936 flow [2021-03-25 18:15:57,833 INFO L129 PetriNetUnfolder]: 112/247 cut-off events. [2021-03-25 18:15:57,833 INFO L130 PetriNetUnfolder]: For 13505/13519 co-relation queries the response was YES. [2021-03-25 18:15:57,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2259 conditions, 247 events. 112/247 cut-off events. For 13505/13519 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1276 event pairs, 0 based on Foata normal form. 2/249 useless extension candidates. Maximal degree in co-relation 2170. Up to 176 conditions per place. [2021-03-25 18:15:57,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:57,960 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:57,960 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:57,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 147 [2021-03-25 18:15:57,960 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 130 transitions, 1720 flow [2021-03-25 18:15:57,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:57,960 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:57,960 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:58,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:58,161 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:58,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:58,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1089202209, now seen corresponding path program 1 times [2021-03-25 18:15:58,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:58,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917882550] [2021-03-25 18:15:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:58,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,177 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:58,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:58,205 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:15:58,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,221 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 18:15:58,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917882550] [2021-03-25 18:15:58,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761799866] [2021-03-25 18:15:58,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:58,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:58,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:58,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:58,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:58,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:58,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:58,261 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:58,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:58,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:58,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:58,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:58,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:58,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:58,287 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 18:15:58,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:58,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:58,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191611773] [2021-03-25 18:15:58,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:58,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:58,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:58,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:58,288 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 163 [2021-03-25 18:15:58,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 130 transitions, 1720 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:58,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:58,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 163 [2021-03-25 18:15:58,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:58,543 INFO L129 PetriNetUnfolder]: 115/253 cut-off events. [2021-03-25 18:15:58,543 INFO L130 PetriNetUnfolder]: For 19012/19018 co-relation queries the response was YES. [2021-03-25 18:15:58,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 253 events. 115/253 cut-off events. For 19012/19018 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1290 event pairs, 0 based on Foata normal form. 1/254 useless extension candidates. Maximal degree in co-relation 2578. Up to 180 conditions per place. [2021-03-25 18:15:58,545 INFO L132 encePairwiseOnDemand]: 112/163 looper letters, 32 selfloop transitions, 94 changer transitions 2/134 dead transitions. [2021-03-25 18:15:58,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 134 transitions, 2392 flow [2021-03-25 18:15:58,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:15:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:15:58,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2021-03-25 18:15:58,546 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15132924335378323 [2021-03-25 18:15:58,546 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 148 transitions. [2021-03-25 18:15:58,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 148 transitions. [2021-03-25 18:15:58,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:58,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 148 transitions. [2021-03-25 18:15:58,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 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 18:15:58,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:58,547 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:58,547 INFO L185 Difference]: Start difference. First operand has 147 places, 130 transitions, 1720 flow. Second operand 6 states and 148 transitions. [2021-03-25 18:15:58,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 134 transitions, 2392 flow [2021-03-25 18:15:58,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 134 transitions, 2172 flow, removed 60 selfloop flow, removed 9 redundant places. [2021-03-25 18:15:58,585 INFO L241 Difference]: Finished difference. Result has 145 places, 132 transitions, 1909 flow [2021-03-25 18:15:58,585 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1504, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1909, PETRI_PLACES=145, PETRI_TRANSITIONS=132} [2021-03-25 18:15:58,585 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 130 predicate places. [2021-03-25 18:15:58,585 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:58,586 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 132 transitions, 1909 flow [2021-03-25 18:15:58,586 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 132 transitions, 1909 flow [2021-03-25 18:15:58,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 132 transitions, 1909 flow [2021-03-25 18:15:58,616 INFO L129 PetriNetUnfolder]: 113/248 cut-off events. [2021-03-25 18:15:58,616 INFO L130 PetriNetUnfolder]: For 15513/15513 co-relation queries the response was YES. [2021-03-25 18:15:58,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2212 conditions, 248 events. 113/248 cut-off events. For 15513/15513 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1274 event pairs, 1 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 2135. Up to 178 conditions per place. [2021-03-25 18:15:58,618 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:15:58,681 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:15:58,682 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:15:58,682 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-25 18:15:58,682 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 132 transitions, 1910 flow [2021-03-25 18:15:58,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:58,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:58,682 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:58,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,92 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:58,904 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:58,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:58,904 INFO L82 PathProgramCache]: Analyzing trace with hash -207105867, now seen corresponding path program 1 times [2021-03-25 18:15:58,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:58,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096240373] [2021-03-25 18:15:58,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:58,910 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:15:58,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:58,925 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:15:58,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:15:58,935 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:15:58,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:58,942 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 18:15:58,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096240373] [2021-03-25 18:15:58,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116894555] [2021-03-25 18:15:58,943 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 18:15:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:58,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:15:58,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:58,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:58,964 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:15:58,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:58,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:58,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:15:58,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:15:58,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:15:58,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:15:58,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:58,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:58,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:58,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:15:58,998 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 18:15:58,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:58,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:59,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:59,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:59,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:59,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:59,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:59,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:15:59,019 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 18:15:59,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:59,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:15:59,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818726864] [2021-03-25 18:15:59,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:15:59,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:59,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:15:59,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:15:59,019 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 164 [2021-03-25 18:15:59,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 132 transitions, 1910 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:59,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:59,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 164 [2021-03-25 18:15:59,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:15:59,360 INFO L129 PetriNetUnfolder]: 116/260 cut-off events. [2021-03-25 18:15:59,360 INFO L130 PetriNetUnfolder]: For 13705/13705 co-relation queries the response was YES. [2021-03-25 18:15:59,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2699 conditions, 260 events. 116/260 cut-off events. For 13705/13705 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1347 event pairs, 1 based on Foata normal form. 3/263 useless extension candidates. Maximal degree in co-relation 2617. Up to 235 conditions per place. [2021-03-25 18:15:59,362 INFO L132 encePairwiseOnDemand]: 111/164 looper letters, 77 selfloop transitions, 54 changer transitions 3/138 dead transitions. [2021-03-25 18:15:59,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 138 transitions, 2532 flow [2021-03-25 18:15:59,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:15:59,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:15:59,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 175 transitions. [2021-03-25 18:15:59,363 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10670731707317073 [2021-03-25 18:15:59,363 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 175 transitions. [2021-03-25 18:15:59,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 175 transitions. [2021-03-25 18:15:59,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:15:59,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 175 transitions. [2021-03-25 18:15:59,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:59,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 164.0) internal successors, (1804), 11 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:59,364 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 164.0) internal successors, (1804), 11 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:15:59,364 INFO L185 Difference]: Start difference. First operand has 144 places, 132 transitions, 1910 flow. Second operand 10 states and 175 transitions. [2021-03-25 18:15:59,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 138 transitions, 2532 flow [2021-03-25 18:15:59,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 138 transitions, 2204 flow, removed 96 selfloop flow, removed 3 redundant places. [2021-03-25 18:15:59,398 INFO L241 Difference]: Finished difference. Result has 156 places, 135 transitions, 2022 flow [2021-03-25 18:15:59,398 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1582, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2022, PETRI_PLACES=156, PETRI_TRANSITIONS=135} [2021-03-25 18:15:59,399 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 141 predicate places. [2021-03-25 18:15:59,399 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:15:59,399 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 135 transitions, 2022 flow [2021-03-25 18:15:59,399 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 135 transitions, 2022 flow [2021-03-25 18:15:59,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 153 places, 135 transitions, 2022 flow [2021-03-25 18:15:59,419 INFO L129 PetriNetUnfolder]: 114/251 cut-off events. [2021-03-25 18:15:59,419 INFO L130 PetriNetUnfolder]: For 14116/14203 co-relation queries the response was YES. [2021-03-25 18:15:59,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2304 conditions, 251 events. 114/251 cut-off events. For 14116/14203 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1311 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 2214. Up to 180 conditions per place. [2021-03-25 18:15:59,421 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:15:59,577 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:15:59,577 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:15:59,578 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 179 [2021-03-25 18:15:59,578 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 132 transitions, 1802 flow [2021-03-25 18:15:59,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:15:59,578 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:15:59,578 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:15:59,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:15:59,792 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:15:59,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:15:59,792 INFO L82 PathProgramCache]: Analyzing trace with hash -974685605, now seen corresponding path program 1 times [2021-03-25 18:15:59,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:15:59,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897273309] [2021-03-25 18:15:59,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:15:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:59,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,807 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:15:59,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:15:59,841 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:15:59,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:59,858 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 18:15:59,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897273309] [2021-03-25 18:15:59,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861482915] [2021-03-25 18:15:59,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 18:15:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:15:59,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:15:59,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:15:59,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:59,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:59,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:59,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:15:59,907 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:15:59,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:15:59,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:15:59,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:15:59,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:15:59,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:59,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:15:59,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:15:59,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:15:59,925 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 18:15:59,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:15:59,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:15:59,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027735735] [2021-03-25 18:15:59,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:15:59,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:15:59,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:15:59,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:15:59,926 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 167 [2021-03-25 18:15:59,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 132 transitions, 1802 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:15:59,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:15:59,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 167 [2021-03-25 18:15:59,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:00,214 INFO L129 PetriNetUnfolder]: 117/257 cut-off events. [2021-03-25 18:16:00,214 INFO L130 PetriNetUnfolder]: For 19964/20022 co-relation queries the response was YES. [2021-03-25 18:16:00,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2724 conditions, 257 events. 117/257 cut-off events. For 19964/20022 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1322 event pairs, 0 based on Foata normal form. 53/310 useless extension candidates. Maximal degree in co-relation 2629. Up to 184 conditions per place. [2021-03-25 18:16:00,216 INFO L132 encePairwiseOnDemand]: 115/167 looper letters, 32 selfloop transitions, 96 changer transitions 2/136 dead transitions. [2021-03-25 18:16:00,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 136 transitions, 2486 flow [2021-03-25 18:16:00,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:16:00,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:16:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2021-03-25 18:16:00,217 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14870259481037923 [2021-03-25 18:16:00,217 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 149 transitions. [2021-03-25 18:16:00,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 149 transitions. [2021-03-25 18:16:00,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:00,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 149 transitions. [2021-03-25 18:16:00,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 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 18:16:00,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:00,218 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:00,218 INFO L185 Difference]: Start difference. First operand has 150 places, 132 transitions, 1802 flow. Second operand 6 states and 149 transitions. [2021-03-25 18:16:00,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 136 transitions, 2486 flow [2021-03-25 18:16:00,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 136 transitions, 2212 flow, removed 61 selfloop flow, removed 10 redundant places. [2021-03-25 18:16:00,263 INFO L241 Difference]: Finished difference. Result has 147 places, 134 transitions, 1945 flow [2021-03-25 18:16:00,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1532, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1945, PETRI_PLACES=147, PETRI_TRANSITIONS=134} [2021-03-25 18:16:00,263 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 132 predicate places. [2021-03-25 18:16:00,263 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:00,263 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 134 transitions, 1945 flow [2021-03-25 18:16:00,263 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 134 transitions, 1945 flow [2021-03-25 18:16:00,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 134 transitions, 1945 flow [2021-03-25 18:16:00,285 INFO L129 PetriNetUnfolder]: 115/252 cut-off events. [2021-03-25 18:16:00,285 INFO L130 PetriNetUnfolder]: For 16036/16037 co-relation queries the response was YES. [2021-03-25 18:16:00,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 252 events. 115/252 cut-off events. For 16036/16037 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1293 event pairs, 1 based on Foata normal form. 1/253 useless extension candidates. Maximal degree in co-relation 2177. Up to 182 conditions per place. [2021-03-25 18:16:00,288 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:16:00,338 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:16:00,338 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:16:00,338 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 18:16:00,339 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 134 transitions, 1946 flow [2021-03-25 18:16:00,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:16:00,339 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:00,339 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:00,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,94 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:16:00,539 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:00,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:00,539 INFO L82 PathProgramCache]: Analyzing trace with hash -73734443, now seen corresponding path program 1 times [2021-03-25 18:16:00,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:00,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355152362] [2021-03-25 18:16:00,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:00,552 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:16:00,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:00,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:00,568 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:16:00,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:00,576 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:16:00,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:00,583 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 18:16:00,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355152362] [2021-03-25 18:16:00,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331404125] [2021-03-25 18:16:00,583 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 18:16:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:00,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:16:00,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:00,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:00,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:00,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:00,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:00,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:00,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:00,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:00,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:00,604 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:16:00,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:16:00,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:00,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:00,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:00,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:00,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:00,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:00,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:00,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:00,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:00,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 18:16:00,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:16:00,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:16:00,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:16:00,639 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:16:00,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:16:00,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:00,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:00,669 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 18:16:00,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:16:00,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:16:00,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281653271] [2021-03-25 18:16:00,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:16:00,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:16:00,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:16:00,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:16:00,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 168 [2021-03-25 18:16:00,670 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 134 transitions, 1946 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:00,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:16:00,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 168 [2021-03-25 18:16:00,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:00,978 INFO L129 PetriNetUnfolder]: 118/264 cut-off events. [2021-03-25 18:16:00,978 INFO L130 PetriNetUnfolder]: For 14362/14411 co-relation queries the response was YES. [2021-03-25 18:16:00,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2750 conditions, 264 events. 118/264 cut-off events. For 14362/14411 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1388 event pairs, 1 based on Foata normal form. 52/316 useless extension candidates. Maximal degree in co-relation 2667. Up to 239 conditions per place. [2021-03-25 18:16:00,981 INFO L132 encePairwiseOnDemand]: 114/168 looper letters, 78 selfloop transitions, 55 changer transitions 3/140 dead transitions. [2021-03-25 18:16:00,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 140 transitions, 2578 flow [2021-03-25 18:16:00,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:16:00,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:16:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 176 transitions. [2021-03-25 18:16:00,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10476190476190476 [2021-03-25 18:16:00,982 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 176 transitions. [2021-03-25 18:16:00,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 176 transitions. [2021-03-25 18:16:00,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:00,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 176 transitions. [2021-03-25 18:16:00,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.6) internal successors, (176), 10 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:00,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 168.0) internal successors, (1848), 11 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:00,984 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 168.0) internal successors, (1848), 11 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:00,984 INFO L185 Difference]: Start difference. First operand has 146 places, 134 transitions, 1946 flow. Second operand 10 states and 176 transitions. [2021-03-25 18:16:00,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 140 transitions, 2578 flow [2021-03-25 18:16:01,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 140 transitions, 2243 flow, removed 98 selfloop flow, removed 3 redundant places. [2021-03-25 18:16:01,029 INFO L241 Difference]: Finished difference. Result has 158 places, 137 transitions, 2059 flow [2021-03-25 18:16:01,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=1611, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2059, PETRI_PLACES=158, PETRI_TRANSITIONS=137} [2021-03-25 18:16:01,029 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 143 predicate places. [2021-03-25 18:16:01,029 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:01,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 137 transitions, 2059 flow [2021-03-25 18:16:01,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 137 transitions, 2059 flow [2021-03-25 18:16:01,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 155 places, 137 transitions, 2059 flow [2021-03-25 18:16:01,051 INFO L129 PetriNetUnfolder]: 116/255 cut-off events. [2021-03-25 18:16:01,051 INFO L130 PetriNetUnfolder]: For 13779/13785 co-relation queries the response was YES. [2021-03-25 18:16:01,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 255 events. 116/255 cut-off events. For 13779/13785 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1357 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 2257. Up to 184 conditions per place. [2021-03-25 18:16:01,054 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:16:01,191 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:16:01,191 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:16:01,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 162 [2021-03-25 18:16:01,191 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 134 transitions, 1835 flow [2021-03-25 18:16:01,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:01,191 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:01,192 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:01,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:16:01,392 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:01,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:01,392 INFO L82 PathProgramCache]: Analyzing trace with hash -860169001, now seen corresponding path program 1 times [2021-03-25 18:16:01,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:01,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561738624] [2021-03-25 18:16:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:01,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,411 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:16:01,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:16:01,443 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 18:16:01,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:01,460 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 18:16:01,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561738624] [2021-03-25 18:16:01,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290459683] [2021-03-25 18:16:01,461 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 18:16:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:01,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:16:01,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:01,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:01,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:01,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:01,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:01,501 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:16:01,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:16:01,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:01,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:01,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:16:01,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:01,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:01,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:01,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:01,516 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 18:16:01,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:16:01,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:16:01,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258908638] [2021-03-25 18:16:01,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:16:01,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:16:01,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:16:01,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:16:01,517 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 171 [2021-03-25 18:16:01,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 134 transitions, 1835 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:16:01,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:16:01,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 171 [2021-03-25 18:16:01,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:01,786 INFO L129 PetriNetUnfolder]: 118/260 cut-off events. [2021-03-25 18:16:01,786 INFO L130 PetriNetUnfolder]: For 18080/18135 co-relation queries the response was YES. [2021-03-25 18:16:01,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2720 conditions, 260 events. 118/260 cut-off events. For 18080/18135 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1333 event pairs, 0 based on Foata normal form. 50/310 useless extension candidates. Maximal degree in co-relation 2624. Up to 188 conditions per place. [2021-03-25 18:16:01,788 INFO L132 encePairwiseOnDemand]: 118/171 looper letters, 32 selfloop transitions, 98 changer transitions 2/138 dead transitions. [2021-03-25 18:16:01,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 138 transitions, 2531 flow [2021-03-25 18:16:01,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:16:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:16:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2021-03-25 18:16:01,789 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14619883040935672 [2021-03-25 18:16:01,789 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 150 transitions. [2021-03-25 18:16:01,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 150 transitions. [2021-03-25 18:16:01,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:01,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 150 transitions. [2021-03-25 18:16:01,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.0) internal successors, (150), 6 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 18:16:01,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:01,790 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:01,790 INFO L185 Difference]: Start difference. First operand has 152 places, 134 transitions, 1835 flow. Second operand 6 states and 150 transitions. [2021-03-25 18:16:01,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 138 transitions, 2531 flow [2021-03-25 18:16:01,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 138 transitions, 2252 flow, removed 62 selfloop flow, removed 10 redundant places. [2021-03-25 18:16:01,837 INFO L241 Difference]: Finished difference. Result has 149 places, 136 transitions, 1981 flow [2021-03-25 18:16:01,837 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=1560, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1981, PETRI_PLACES=149, PETRI_TRANSITIONS=136} [2021-03-25 18:16:01,837 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 134 predicate places. [2021-03-25 18:16:01,837 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:01,837 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 136 transitions, 1981 flow [2021-03-25 18:16:01,837 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 136 transitions, 1981 flow [2021-03-25 18:16:01,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 136 transitions, 1981 flow [2021-03-25 18:16:01,858 INFO L129 PetriNetUnfolder]: 117/256 cut-off events. [2021-03-25 18:16:01,858 INFO L130 PetriNetUnfolder]: For 13531/13534 co-relation queries the response was YES. [2021-03-25 18:16:01,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2298 conditions, 256 events. 117/256 cut-off events. For 13531/13534 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1349 event pairs, 0 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 2219. Up to 186 conditions per place. [2021-03-25 18:16:01,860 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:16:01,863 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:16:01,863 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 18:16:01,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-25 18:16:01,863 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 136 transitions, 1981 flow [2021-03-25 18:16:01,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:16:01,864 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:01,864 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:02,064 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:16:02,064 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:02,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:02,064 INFO L82 PathProgramCache]: Analyzing trace with hash -70040359, now seen corresponding path program 1 times [2021-03-25 18:16:02,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:02,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211417695] [2021-03-25 18:16:02,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:02,070 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:16:02,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:02,083 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:16:02,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:02,092 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:16:02,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:02,099 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 18:16:02,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211417695] [2021-03-25 18:16:02,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814626667] [2021-03-25 18:16:02,099 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 18:16:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:02,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:16:02,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:02,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,120 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:16:02,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:16:02,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:02,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:02,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:02,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:02,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:02,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:02,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:02,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:02,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:02,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 18:16:02,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:16:02,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:16:02,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:16:02,164 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:16:02,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:16:02,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:02,194 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 18:16:02,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:16:02,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:16:02,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134592120] [2021-03-25 18:16:02,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:16:02,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:16:02,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:16:02,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:16:02,195 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 171 [2021-03-25 18:16:02,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 136 transitions, 1981 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:02,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:16:02,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 171 [2021-03-25 18:16:02,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:02,518 INFO L129 PetriNetUnfolder]: 120/269 cut-off events. [2021-03-25 18:16:02,518 INFO L130 PetriNetUnfolder]: For 18569/18569 co-relation queries the response was YES. [2021-03-25 18:16:02,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2799 conditions, 269 events. 120/269 cut-off events. For 18569/18569 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1406 event pairs, 0 based on Foata normal form. 3/272 useless extension candidates. Maximal degree in co-relation 2715. Up to 243 conditions per place. [2021-03-25 18:16:02,520 INFO L132 encePairwiseOnDemand]: 117/171 looper letters, 80 selfloop transitions, 55 changer transitions 3/142 dead transitions. [2021-03-25 18:16:02,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 142 transitions, 2623 flow [2021-03-25 18:16:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:16:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:16:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 176 transitions. [2021-03-25 18:16:02,521 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10292397660818714 [2021-03-25 18:16:02,521 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 176 transitions. [2021-03-25 18:16:02,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 176 transitions. [2021-03-25 18:16:02,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:02,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 176 transitions. [2021-03-25 18:16:02,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.6) internal successors, (176), 10 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:02,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 171.0) internal successors, (1881), 11 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:02,522 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 171.0) internal successors, (1881), 11 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:02,522 INFO L185 Difference]: Start difference. First operand has 148 places, 136 transitions, 1981 flow. Second operand 10 states and 176 transitions. [2021-03-25 18:16:02,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 142 transitions, 2623 flow [2021-03-25 18:16:02,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 142 transitions, 2232 flow, removed 99 selfloop flow, removed 4 redundant places. [2021-03-25 18:16:02,564 INFO L241 Difference]: Finished difference. Result has 159 places, 139 transitions, 2044 flow [2021-03-25 18:16:02,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=1590, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2044, PETRI_PLACES=159, PETRI_TRANSITIONS=139} [2021-03-25 18:16:02,564 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 144 predicate places. [2021-03-25 18:16:02,565 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:02,565 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 139 transitions, 2044 flow [2021-03-25 18:16:02,565 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 139 transitions, 2044 flow [2021-03-25 18:16:02,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 139 transitions, 2044 flow [2021-03-25 18:16:02,590 INFO L129 PetriNetUnfolder]: 118/259 cut-off events. [2021-03-25 18:16:02,590 INFO L130 PetriNetUnfolder]: For 15252/15343 co-relation queries the response was YES. [2021-03-25 18:16:02,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2388 conditions, 259 events. 118/259 cut-off events. For 15252/15343 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1380 event pairs, 1 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 2296. Up to 188 conditions per place. [2021-03-25 18:16:02,593 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:16:02,758 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:16:02,758 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 18:16:02,758 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 194 [2021-03-25 18:16:02,758 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 136 transitions, 1824 flow [2021-03-25 18:16:02,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:02,758 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:02,759 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:02,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2021-03-25 18:16:02,959 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:02,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:02,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1247191971, now seen corresponding path program 1 times [2021-03-25 18:16:02,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:02,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581529970] [2021-03-25 18:16:02,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:02,972 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:16:02,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:02,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:16:02,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:02,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:02,995 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:16:02,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:03,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:16:03,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:03,018 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 18:16:03,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581529970] [2021-03-25 18:16:03,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868038447] [2021-03-25 18:16:03,019 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 18:16:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:03,051 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-25 18:16:03,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:03,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,059 INFO L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-03-25 18:16:03,059 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-03-25 18:16:03,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,074 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:16:03,075 INFO L147 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size 21 [2021-03-25 18:16:03,075 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-03-25 18:16:03,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:03,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:16:03,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:16:03,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:16:03,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:16:03,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,093 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-03-25 18:16:03,094 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-03-25 18:16:03,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:16:03,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:16:03,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 18:16:03,114 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 18:16:03,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:16:03,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:03,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 18:16:03,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 18:16:03,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:03,144 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 18:16:03,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:16:03,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 18:16:03,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216841029] [2021-03-25 18:16:03,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 18:16:03,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:16:03,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 18:16:03,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-25 18:16:03,145 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 175 [2021-03-25 18:16:03,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 136 transitions, 1824 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:16:03,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:16:03,145 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 175 [2021-03-25 18:16:03,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:03,550 INFO L129 PetriNetUnfolder]: 119/266 cut-off events. [2021-03-25 18:16:03,550 INFO L130 PetriNetUnfolder]: For 18144/18144 co-relation queries the response was YES. [2021-03-25 18:16:03,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2828 conditions, 266 events. 119/266 cut-off events. For 18144/18144 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1384 event pairs, 0 based on Foata normal form. 2/268 useless extension candidates. Maximal degree in co-relation 2731. Up to 242 conditions per place. [2021-03-25 18:16:03,553 INFO L132 encePairwiseOnDemand]: 114/175 looper letters, 72 selfloop transitions, 62 changer transitions 2/140 dead transitions. [2021-03-25 18:16:03,553 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 140 transitions, 2536 flow [2021-03-25 18:16:03,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 18:16:03,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 18:16:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2021-03-25 18:16:03,555 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10476190476190476 [2021-03-25 18:16:03,555 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 165 transitions. [2021-03-25 18:16:03,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 165 transitions. [2021-03-25 18:16:03,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:03,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 165 transitions. [2021-03-25 18:16:03,555 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 18:16:03,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:03,556 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:03,556 INFO L185 Difference]: Start difference. First operand has 153 places, 136 transitions, 1824 flow. Second operand 9 states and 165 transitions. [2021-03-25 18:16:03,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 140 transitions, 2536 flow [2021-03-25 18:16:03,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 140 transitions, 2300 flow, removed 65 selfloop flow, removed 9 redundant places. [2021-03-25 18:16:03,611 INFO L241 Difference]: Finished difference. Result has 156 places, 138 transitions, 1946 flow [2021-03-25 18:16:03,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=1588, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1946, PETRI_PLACES=156, PETRI_TRANSITIONS=138} [2021-03-25 18:16:03,611 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 141 predicate places. [2021-03-25 18:16:03,611 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:03,612 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 138 transitions, 1946 flow [2021-03-25 18:16:03,612 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 138 transitions, 1946 flow [2021-03-25 18:16:03,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 138 transitions, 1946 flow [2021-03-25 18:16:03,632 INFO L129 PetriNetUnfolder]: 117/258 cut-off events. [2021-03-25 18:16:03,633 INFO L130 PetriNetUnfolder]: For 14913/14914 co-relation queries the response was YES. [2021-03-25 18:16:03,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2199 conditions, 258 events. 117/258 cut-off events. For 14913/14914 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1355 event pairs, 0 based on Foata normal form. 1/259 useless extension candidates. Maximal degree in co-relation 2113. Up to 188 conditions per place. [2021-03-25 18:16:03,635 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:16:03,723 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:16:03,724 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 18:16:03,724 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 113 [2021-03-25 18:16:03,724 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 136 transitions, 1828 flow [2021-03-25 18:16:03,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 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 18:16:03,724 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:03,724 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:03,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:16:03,925 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:03,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:03,925 INFO L82 PathProgramCache]: Analyzing trace with hash -66346275, now seen corresponding path program 1 times [2021-03-25 18:16:03,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:03,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979865813] [2021-03-25 18:16:03,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:03,936 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:16:03,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:03,949 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:16:03,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:03,958 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:16:03,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:03,964 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 18:16:03,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979865813] [2021-03-25 18:16:03,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56982173] [2021-03-25 18:16:03,965 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 18:16:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:03,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:16:03,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:03,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:03,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:03,999 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:16:03,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 18:16:04,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:04,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:04,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 18:16:04,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:16:04,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:16:04,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:16:04,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:16:04,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:16:04,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:16:04,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,016 INFO L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-03-25 18:16:04,016 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.4 percent of original size [2021-03-25 18:16:04,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:16:04,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:16:04,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:16:04,033 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 18:16:04,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 18:16:04,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:04,057 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 18:16:04,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:16:04,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:16:04,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329811982] [2021-03-25 18:16:04,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:16:04,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:16:04,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:16:04,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:16:04,058 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 177 [2021-03-25 18:16:04,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 136 transitions, 1828 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:04,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:16:04,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 177 [2021-03-25 18:16:04,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:04,360 INFO L129 PetriNetUnfolder]: 120/268 cut-off events. [2021-03-25 18:16:04,361 INFO L130 PetriNetUnfolder]: For 16692/16692 co-relation queries the response was YES. [2021-03-25 18:16:04,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2642 conditions, 268 events. 120/268 cut-off events. For 16692/16692 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1397 event pairs, 1 based on Foata normal form. 3/271 useless extension candidates. Maximal degree in co-relation 2551. Up to 243 conditions per place. [2021-03-25 18:16:04,363 INFO L132 encePairwiseOnDemand]: 122/177 looper letters, 79 selfloop transitions, 56 changer transitions 3/142 dead transitions. [2021-03-25 18:16:04,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 142 transitions, 2470 flow [2021-03-25 18:16:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:16:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:16:04,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 177 transitions. [2021-03-25 18:16:04,364 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1 [2021-03-25 18:16:04,364 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 177 transitions. [2021-03-25 18:16:04,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 177 transitions. [2021-03-25 18:16:04,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:04,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 177 transitions. [2021-03-25 18:16:04,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.7) internal successors, (177), 10 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:04,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 177.0) internal successors, (1947), 11 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:04,365 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 177.0) internal successors, (1947), 11 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:04,365 INFO L185 Difference]: Start difference. First operand has 152 places, 136 transitions, 1828 flow. Second operand 10 states and 177 transitions. [2021-03-25 18:16:04,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 142 transitions, 2470 flow [2021-03-25 18:16:04,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 142 transitions, 2230 flow, removed 60 selfloop flow, removed 8 redundant places. [2021-03-25 18:16:04,410 INFO L241 Difference]: Finished difference. Result has 159 places, 139 transitions, 2044 flow [2021-03-25 18:16:04,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=1588, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2044, PETRI_PLACES=159, PETRI_TRANSITIONS=139} [2021-03-25 18:16:04,410 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 144 predicate places. [2021-03-25 18:16:04,411 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:04,411 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 139 transitions, 2044 flow [2021-03-25 18:16:04,411 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 139 transitions, 2044 flow [2021-03-25 18:16:04,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 139 transitions, 2044 flow [2021-03-25 18:16:04,431 INFO L129 PetriNetUnfolder]: 118/259 cut-off events. [2021-03-25 18:16:04,432 INFO L130 PetriNetUnfolder]: For 15060/15152 co-relation queries the response was YES. [2021-03-25 18:16:04,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 259 events. 118/259 cut-off events. For 15060/15152 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1364 event pairs, 0 based on Foata normal form. 1/260 useless extension candidates. Maximal degree in co-relation 2299. Up to 188 conditions per place. [2021-03-25 18:16:04,434 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:16:04,562 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:16:04,562 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:16:04,562 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-03-25 18:16:04,563 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 136 transitions, 1816 flow [2021-03-25 18:16:04,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:04,563 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:04,563 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:04,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:16:04,763 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:04,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:04,763 INFO L82 PathProgramCache]: Analyzing trace with hash -745652397, now seen corresponding path program 1 times [2021-03-25 18:16:04,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:04,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655277033] [2021-03-25 18:16:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:04,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,778 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:16:04,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:16:04,805 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:16:04,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:16:04,821 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 18:16:04,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655277033] [2021-03-25 18:16:04,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31518042] [2021-03-25 18:16:04,821 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) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:16:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:04,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:16:04,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:04,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:04,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:04,872 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:16:04,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:16:04,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:04,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:04,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:16:04,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:04,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:04,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:04,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:04,886 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 18:16:04,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:16:04,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:16:04,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766431037] [2021-03-25 18:16:04,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:16:04,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:16:04,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:16:04,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:16:04,887 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 180 [2021-03-25 18:16:04,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 136 transitions, 1816 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:16:04,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:16:04,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 180 [2021-03-25 18:16:04,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:05,160 INFO L129 PetriNetUnfolder]: 121/265 cut-off events. [2021-03-25 18:16:05,161 INFO L130 PetriNetUnfolder]: For 21256/21262 co-relation queries the response was YES. [2021-03-25 18:16:05,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2825 conditions, 265 events. 121/265 cut-off events. For 21256/21262 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 1374 event pairs, 0 based on Foata normal form. 1/266 useless extension candidates. Maximal degree in co-relation 2728. Up to 192 conditions per place. [2021-03-25 18:16:05,163 INFO L132 encePairwiseOnDemand]: 126/180 looper letters, 32 selfloop transitions, 100 changer transitions 2/140 dead transitions. [2021-03-25 18:16:05,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 140 transitions, 2524 flow [2021-03-25 18:16:05,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:16:05,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:16:05,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2021-03-25 18:16:05,164 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1398148148148148 [2021-03-25 18:16:05,164 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 151 transitions. [2021-03-25 18:16:05,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 151 transitions. [2021-03-25 18:16:05,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:05,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 151 transitions. [2021-03-25 18:16:05,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 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 18:16:05,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 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 18:16:05,164 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 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 18:16:05,165 INFO L185 Difference]: Start difference. First operand has 153 places, 136 transitions, 1816 flow. Second operand 6 states and 151 transitions. [2021-03-25 18:16:05,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 140 transitions, 2524 flow [2021-03-25 18:16:05,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 140 transitions, 2292 flow, removed 63 selfloop flow, removed 9 redundant places. [2021-03-25 18:16:05,213 INFO L241 Difference]: Finished difference. Result has 151 places, 138 transitions, 2017 flow [2021-03-25 18:16:05,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=1588, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2017, PETRI_PLACES=151, PETRI_TRANSITIONS=138} [2021-03-25 18:16:05,214 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 136 predicate places. [2021-03-25 18:16:05,214 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:05,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 138 transitions, 2017 flow [2021-03-25 18:16:05,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 138 transitions, 2017 flow [2021-03-25 18:16:05,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 138 transitions, 2017 flow [2021-03-25 18:16:05,236 INFO L129 PetriNetUnfolder]: 119/260 cut-off events. [2021-03-25 18:16:05,237 INFO L130 PetriNetUnfolder]: For 17296/17297 co-relation queries the response was YES. [2021-03-25 18:16:05,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2341 conditions, 260 events. 119/260 cut-off events. For 17296/17297 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1366 event pairs, 1 based on Foata normal form. 1/261 useless extension candidates. Maximal degree in co-relation 2261. Up to 190 conditions per place. [2021-03-25 18:16:05,239 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:16:05,287 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:16:05,287 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 18:16:05,287 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-25 18:16:05,287 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 138 transitions, 2018 flow [2021-03-25 18:16:05,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:16:05,287 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:05,287 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:05,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-03-25 18:16:05,508 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:05,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:05,509 INFO L82 PathProgramCache]: Analyzing trace with hash 658816216, now seen corresponding path program 1 times [2021-03-25 18:16:05,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:05,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955834951] [2021-03-25 18:16:05,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:05,517 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:16:05,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:05,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:16:05,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:05,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:16:05,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:05,552 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 18:16:05,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955834951] [2021-03-25 18:16:05,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367658179] [2021-03-25 18:16:05,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 18:16:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:05,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:16:05,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:05,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,583 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:16:05,583 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.3 percent of original size 41 [2021-03-25 18:16:05,587 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-03-25 18:16:05,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:05,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:05,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 18:16:05,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:16:05,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:16:05,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:16:05,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:16:05,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:16:05,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 18:16:05,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,609 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 49 [2021-03-25 18:16:05,610 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.2 percent of original size [2021-03-25 18:16:05,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:16:05,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:16:05,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 18:16:05,632 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-03-25 18:16:05,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 18:16:05,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:05,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:05,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:05,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:05,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:05,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:05,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:05,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 18:16:05,666 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 18:16:05,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:16:05,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:16:05,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6305975] [2021-03-25 18:16:05,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:16:05,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:16:05,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:16:05,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:16:05,667 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 181 [2021-03-25 18:16:05,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 138 transitions, 2018 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:05,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:16:05,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 181 [2021-03-25 18:16:05,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:06,133 INFO L129 PetriNetUnfolder]: 122/272 cut-off events. [2021-03-25 18:16:06,133 INFO L130 PetriNetUnfolder]: For 15310/15310 co-relation queries the response was YES. [2021-03-25 18:16:06,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2852 conditions, 272 events. 122/272 cut-off events. For 15310/15310 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1423 event pairs, 1 based on Foata normal form. 3/275 useless extension candidates. Maximal degree in co-relation 2767. Up to 247 conditions per place. [2021-03-25 18:16:06,135 INFO L132 encePairwiseOnDemand]: 125/181 looper letters, 80 selfloop transitions, 57 changer transitions 3/144 dead transitions. [2021-03-25 18:16:06,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 144 transitions, 2670 flow [2021-03-25 18:16:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:16:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:16:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 178 transitions. [2021-03-25 18:16:06,136 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.09834254143646409 [2021-03-25 18:16:06,136 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 178 transitions. [2021-03-25 18:16:06,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 178 transitions. [2021-03-25 18:16:06,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:06,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 178 transitions. [2021-03-25 18:16:06,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.8) internal successors, (178), 10 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 18:16:06,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:06,137 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:06,137 INFO L185 Difference]: Start difference. First operand has 150 places, 138 transitions, 2018 flow. Second operand 10 states and 178 transitions. [2021-03-25 18:16:06,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 144 transitions, 2670 flow [2021-03-25 18:16:06,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 144 transitions, 2321 flow, removed 102 selfloop flow, removed 3 redundant places. [2021-03-25 18:16:06,170 INFO L241 Difference]: Finished difference. Result has 162 places, 141 transitions, 2133 flow [2021-03-25 18:16:06,170 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1669, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2133, PETRI_PLACES=162, PETRI_TRANSITIONS=141} [2021-03-25 18:16:06,171 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 147 predicate places. [2021-03-25 18:16:06,171 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:06,171 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 141 transitions, 2133 flow [2021-03-25 18:16:06,171 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 141 transitions, 2133 flow [2021-03-25 18:16:06,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 141 transitions, 2133 flow [2021-03-25 18:16:06,193 INFO L129 PetriNetUnfolder]: 120/263 cut-off events. [2021-03-25 18:16:06,193 INFO L130 PetriNetUnfolder]: For 14804/14812 co-relation queries the response was YES. [2021-03-25 18:16:06,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2436 conditions, 263 events. 120/263 cut-off events. For 14804/14812 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1354 event pairs, 0 based on Foata normal form. 1/264 useless extension candidates. Maximal degree in co-relation 2343. Up to 192 conditions per place. [2021-03-25 18:16:06,196 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:16:06,342 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:16:06,342 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 18:16:06,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-03-25 18:16:06,342 INFO L480 AbstractCegarLoop]: Abstraction has has 156 places, 138 transitions, 1901 flow [2021-03-25 18:16:06,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:06,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:06,342 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:06,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-03-25 18:16:06,543 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:06,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:06,543 INFO L82 PathProgramCache]: Analyzing trace with hash -488076528, now seen corresponding path program 1 times [2021-03-25 18:16:06,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:06,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241449219] [2021-03-25 18:16:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:06,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,559 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-03-25 18:16:06,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:16:06,596 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-25 18:16:06,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:16:06,616 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 18:16:06,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241449219] [2021-03-25 18:16:06,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328505692] [2021-03-25 18:16:06,617 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) [2021-03-25 18:16:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:06,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 18:16:06,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:06,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 18:16:06,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:06,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:06,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:06,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 18:16:06,669 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-03-25 18:16:06,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 18:16:06,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:06,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:06,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 18:16:06,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:06,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:06,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:06,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:06,685 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 18:16:06,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:16:06,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 18:16:06,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90253966] [2021-03-25 18:16:06,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 18:16:06,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:16:06,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 18:16:06,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 18:16:06,686 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 184 [2021-03-25 18:16:06,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 138 transitions, 1901 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:16:06,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:16:06,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 184 [2021-03-25 18:16:06,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:06,937 INFO L129 PetriNetUnfolder]: 123/269 cut-off events. [2021-03-25 18:16:06,937 INFO L130 PetriNetUnfolder]: For 22246/22252 co-relation queries the response was YES. [2021-03-25 18:16:06,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2877 conditions, 269 events. 123/269 cut-off events. For 22246/22252 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1401 event pairs, 0 based on Foata normal form. 1/270 useless extension candidates. Maximal degree in co-relation 2779. Up to 196 conditions per place. [2021-03-25 18:16:06,940 INFO L132 encePairwiseOnDemand]: 129/184 looper letters, 32 selfloop transitions, 102 changer transitions 2/142 dead transitions. [2021-03-25 18:16:06,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 142 transitions, 2621 flow [2021-03-25 18:16:06,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 18:16:06,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 18:16:06,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2021-03-25 18:16:06,941 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.13768115942028986 [2021-03-25 18:16:06,941 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 152 transitions. [2021-03-25 18:16:06,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 152 transitions. [2021-03-25 18:16:06,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:06,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 152 transitions. [2021-03-25 18:16:06,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:06,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:06,942 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:06,942 INFO L185 Difference]: Start difference. First operand has 156 places, 138 transitions, 1901 flow. Second operand 6 states and 152 transitions. [2021-03-25 18:16:06,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 142 transitions, 2621 flow [2021-03-25 18:16:06,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 142 transitions, 2332 flow, removed 64 selfloop flow, removed 10 redundant places. [2021-03-25 18:16:06,996 INFO L241 Difference]: Finished difference. Result has 153 places, 140 transitions, 2053 flow [2021-03-25 18:16:06,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1616, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2053, PETRI_PLACES=153, PETRI_TRANSITIONS=140} [2021-03-25 18:16:06,996 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 138 predicate places. [2021-03-25 18:16:06,996 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:06,996 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 140 transitions, 2053 flow [2021-03-25 18:16:06,996 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 140 transitions, 2053 flow [2021-03-25 18:16:06,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 140 transitions, 2053 flow [2021-03-25 18:16:07,018 INFO L129 PetriNetUnfolder]: 121/264 cut-off events. [2021-03-25 18:16:07,018 INFO L130 PetriNetUnfolder]: For 14604/14607 co-relation queries the response was YES. [2021-03-25 18:16:07,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 264 events. 121/264 cut-off events. For 14604/14607 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 1401 event pairs, 0 based on Foata normal form. 2/266 useless extension candidates. Maximal degree in co-relation 2303. Up to 194 conditions per place. [2021-03-25 18:16:07,020 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 18:16:07,024 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 18:16:07,024 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 18:16:07,024 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-25 18:16:07,024 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 140 transitions, 2053 flow [2021-03-25 18:16:07,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 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 18:16:07,024 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:07,024 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:07,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-03-25 18:16:07,228 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:07,228 INFO L82 PathProgramCache]: Analyzing trace with hash -58121076, now seen corresponding path program 1 times [2021-03-25 18:16:07,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:07,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928358523] [2021-03-25 18:16:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:07,232 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-25 18:16:07,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:07,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:07,245 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:16:07,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:07,254 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:16:07,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:07,261 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 18:16:07,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928358523] [2021-03-25 18:16:07,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373345729] [2021-03-25 18:16:07,261 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 18:16:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:07,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 18:16:07,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:07,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:07,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:07,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:07,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:07,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:07,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:07,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:07,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:07,282 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 18:16:07,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:07,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:07,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 18:16:07,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 18:16:07,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:16:07,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:16:07,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:16:07,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:16:07,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:16:07,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 18:16:07,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,299 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-03-25 18:16:07,299 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.9 percent of original size [2021-03-25 18:16:07,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:07,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:07,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:07,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:07,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:07,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:07,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:07,317 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 18:16:07,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 18:16:07,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:07,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:07,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:07,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:07,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:07,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:07,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:07,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:07,338 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 18:16:07,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 18:16:07,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 18:16:07,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725746149] [2021-03-25 18:16:07,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 18:16:07,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 18:16:07,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 18:16:07,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 18:16:07,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 184 [2021-03-25 18:16:07,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 140 transitions, 2053 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:07,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 18:16:07,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 184 [2021-03-25 18:16:07,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 18:16:07,616 INFO L129 PetriNetUnfolder]: 123/275 cut-off events. [2021-03-25 18:16:07,616 INFO L130 PetriNetUnfolder]: For 19511/19563 co-relation queries the response was YES. [2021-03-25 18:16:07,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2899 conditions, 275 events. 123/275 cut-off events. For 19511/19563 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1445 event pairs, 2 based on Foata normal form. 55/330 useless extension candidates. Maximal degree in co-relation 2813. Up to 251 conditions per place. [2021-03-25 18:16:07,619 INFO L132 encePairwiseOnDemand]: 128/184 looper letters, 82 selfloop transitions, 57 changer transitions 3/146 dead transitions. [2021-03-25 18:16:07,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 146 transitions, 2715 flow [2021-03-25 18:16:07,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 18:16:07,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 18:16:07,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 178 transitions. [2021-03-25 18:16:07,622 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.0967391304347826 [2021-03-25 18:16:07,622 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 178 transitions. [2021-03-25 18:16:07,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 178 transitions. [2021-03-25 18:16:07,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 18:16:07,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 178 transitions. [2021-03-25 18:16:07,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.8) internal successors, (178), 10 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 18:16:07,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 184.0) internal successors, (2024), 11 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:07,623 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 184.0) internal successors, (2024), 11 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 18:16:07,623 INFO L185 Difference]: Start difference. First operand has 152 places, 140 transitions, 2053 flow. Second operand 10 states and 178 transitions. [2021-03-25 18:16:07,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 146 transitions, 2715 flow [2021-03-25 18:16:07,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 146 transitions, 2308 flow, removed 103 selfloop flow, removed 4 redundant places. [2021-03-25 18:16:07,666 INFO L241 Difference]: Finished difference. Result has 163 places, 143 transitions, 2116 flow [2021-03-25 18:16:07,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1646, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2116, PETRI_PLACES=163, PETRI_TRANSITIONS=143} [2021-03-25 18:16:07,666 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 148 predicate places. [2021-03-25 18:16:07,666 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 18:16:07,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 143 transitions, 2116 flow [2021-03-25 18:16:07,667 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 143 transitions, 2116 flow [2021-03-25 18:16:07,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 143 transitions, 2116 flow [2021-03-25 18:16:07,690 INFO L129 PetriNetUnfolder]: 122/269 cut-off events. [2021-03-25 18:16:07,690 INFO L130 PetriNetUnfolder]: For 16648/16648 co-relation queries the response was YES. [2021-03-25 18:16:07,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2534 conditions, 269 events. 122/269 cut-off events. For 16648/16648 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1425 event pairs, 1 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 2440. Up to 196 conditions per place. [2021-03-25 18:16:07,692 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 18:16:07,859 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 18:16:07,859 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 18:16:07,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 193 [2021-03-25 18:16:07,859 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 140 transitions, 1888 flow [2021-03-25 18:16:07,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 18:16:07,859 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 18:16:07,859 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 18:16:08,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-03-25 18:16:08,060 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 18:16:08,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 18:16:08,060 INFO L82 PathProgramCache]: Analyzing trace with hash 749283735, now seen corresponding path program 1 times [2021-03-25 18:16:08,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 18:16:08,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875605995] [2021-03-25 18:16:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 18:16:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:08,066 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 18:16:08,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:16:08,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:08,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 18:16:08,085 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 18:16:08,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,094 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 18:16:08,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:08,102 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 18:16:08,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875605995] [2021-03-25 18:16:08,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945048021] [2021-03-25 18:16:08,102 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 18:16:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 18:16:08,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 18 conjunts are in the unsatisfiable core [2021-03-25 18:16:08,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 18:16:08,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:16:08,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:16:08,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:16:08,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:16:08,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:16:08,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:16:08,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:16:08,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 18:16:08,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,136 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-25 18:16:08,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 18:16:08,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 18:16:08,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 18:16:08,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:08,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,153 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size 32 [2021-03-25 18:16:08,153 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.5 percent of original size [2021-03-25 18:16:08,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 18:16:08,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 18:16:08,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 18:16:08,172 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-25 18:16:08,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 18:16:08,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,200 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:08,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-03-25 18:16:08,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-03-25 18:16:08,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,233 INFO L142 QuantifierPusher]: treesize reduction -3, result has 103.5 percent of original size [2021-03-25 18:16:08,236 INFO L147 QuantifierPusher]: treesize reduction -3, result has 101.6 percent of original size 194 [2021-03-25 18:16:08,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,238 INFO L142 QuantifierPusher]: treesize reduction -3, result has 103.3 percent of original size [2021-03-25 18:16:08,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 18:16:08,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,281 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:08,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:16:08,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,287 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.1 percent of original size [2021-03-25 18:16:08,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,299 INFO L147 QuantifierPusher]: treesize reduction -4, result has 101.8 percent of original size 232 [2021-03-25 18:16:08,351 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:08,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,369 INFO L147 QuantifierPusher]: treesize reduction -2, result has 101.5 percent of original size 138 [2021-03-25 18:16:08,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,370 INFO L142 QuantifierPusher]: treesize reduction -1, result has 100.3 percent of original size [2021-03-25 18:16:08,450 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:08,562 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:08,693 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:08,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:08,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,766 INFO L142 QuantifierPusher]: treesize reduction -2, result has 101.9 percent of original size [2021-03-25 18:16:08,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:08,786 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-03-25 18:16:08,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:08,798 INFO L142 QuantifierPusher]: treesize reduction -6, result has 104.3 percent of original size [2021-03-25 18:16:08,830 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:08,941 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 18:16:09,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,006 INFO L147 QuantifierPusher]: treesize reduction -4, result has 104.5 percent of original size 93 [2021-03-25 18:16:09,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,010 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.9 percent of original size 62 [2021-03-25 18:16:09,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,012 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.7 percent of original size [2021-03-25 18:16:09,018 INFO L147 QuantifierPusher]: treesize reduction -14, result has 103.6 percent of original size 407 [2021-03-25 18:16:09,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,022 INFO L142 QuantifierPusher]: treesize reduction -4, result has 102.1 percent of original size [2021-03-25 18:16:09,053 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,087 INFO L147 QuantifierPusher]: treesize reduction -7, result has 112.5 percent of original size 63 [2021-03-25 18:16:09,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,088 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size [2021-03-25 18:16:09,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 18:16:09,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 18:16:09,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 18:16:09,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,124 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,169 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 18:16:09,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 18:16:09,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,186 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.9 percent of original size 31 [2021-03-25 18:16:09,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 18:16:09,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,198 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.3 percent of original size 24 [2021-03-25 18:16:09,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:16:09,240 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,354 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,483 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:16:09,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 18:16:09,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 18:16:09,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,542 INFO L147 QuantifierPusher]: treesize reduction -9, result has 114.1 percent of original size 73 [2021-03-25 18:16:09,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,547 INFO L142 QuantifierPusher]: treesize reduction -9, result has 109.0 percent of original size [2021-03-25 18:16:09,572 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 18:16:09,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 18:16:09,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,599 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,614 INFO L147 QuantifierPusher]: treesize reduction 53, result has 88.2 percent of original size 395 [2021-03-25 18:16:09,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:09,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:09,653 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:09,950 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:10,348 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:10,916 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:11,741 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:12,779 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:13,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:13,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:13,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:13,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:13,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:13,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 18:16:13,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:13,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:13,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:13,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:13,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:13,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 18:16:13,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:13,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:13,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 18:16:13,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:13,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 18:16:13,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 18:16:13,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:13,828 INFO L142 QuantifierPusher]: treesize reduction 105, result has 84.4 percent of original size [2021-03-25 18:16:13,844 INFO L147 QuantifierPusher]: treesize reduction -201, result has 103.6 percent of original size 5734 [2021-03-25 18:16:13,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:13,865 INFO L142 QuantifierPusher]: treesize reduction -5, result has 100.3 percent of original size [2021-03-25 18:16:13,981 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1050 DAG size of output: 1010 [2021-03-25 18:16:13,999 INFO L147 QuantifierPusher]: treesize reduction -97, result has 100.3 percent of original size 37200 [2021-03-25 18:16:14,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 18:16:14,130 INFO L142 QuantifierPusher]: treesize reduction -198, result has 101.1 percent of original size [2021-03-25 18:16:15,990 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:20,062 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:26,354 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:34,856 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:16:47,643 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:17:03,581 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:17:22,110 INFO L842 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:17:43,177 INFO L842 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:18:07,198 INFO L842 QuantifierPusher]: Run 90 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:18:33,902 INFO L842 QuantifierPusher]: Run 100 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:19:03,276 INFO L842 QuantifierPusher]: Run 110 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:19:35,326 INFO L842 QuantifierPusher]: Run 120 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:20:10,433 INFO L842 QuantifierPusher]: Run 130 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:20:48,720 INFO L842 QuantifierPusher]: Run 140 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:21:29,340 INFO L842 QuantifierPusher]: Run 150 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:22:12,874 INFO L842 QuantifierPusher]: Run 160 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:22:59,881 INFO L842 QuantifierPusher]: Run 170 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:23:49,688 INFO L842 QuantifierPusher]: Run 180 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:24:42,587 INFO L842 QuantifierPusher]: Run 190 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:25:38,894 INFO L842 QuantifierPusher]: Run 200 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:26:37,965 INFO L842 QuantifierPusher]: Run 210 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:27:39,494 INFO L842 QuantifierPusher]: Run 220 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 18:28:44,378 INFO L842 QuantifierPusher]: Run 230 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. Received shutdown request... [2021-03-25 18:29:38,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-03-25 18:29:38,316 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-25 18:29:38,319 WARN L224 ceAbstractionStarter]: Timeout [2021-03-25 18:29:38,319 INFO L202 PluginConnector]: Adding new model mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 06:29:38 BasicIcfg [2021-03-25 18:29:38,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 18:29:38,319 INFO L168 Benchmark]: Toolchain (without parser) took 882101.53 ms. Allocated memory was 255.9 MB in the beginning and 616.6 MB in the end (delta: 360.7 MB). Free memory was 236.6 MB in the beginning and 336.6 MB in the end (delta: -100.0 MB). Peak memory consumption was 390.9 MB. Max. memory is 16.0 GB. [2021-03-25 18:29:38,320 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 18:29:38,320 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.76 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 18:29:38,320 INFO L168 Benchmark]: Boogie Preprocessor took 16.91 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.2 MB in the end (delta: 912.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 18:29:38,320 INFO L168 Benchmark]: RCFGBuilder took 278.14 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 237.5 MB in the end (delta: -3.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. [2021-03-25 18:29:38,320 INFO L168 Benchmark]: TraceAbstraction took 881773.71 ms. Allocated memory was 255.9 MB in the beginning and 616.6 MB in the end (delta: 360.7 MB). Free memory was 237.1 MB in the beginning and 336.6 MB in the end (delta: -99.5 MB). Peak memory consumption was 389.8 MB. Max. memory is 16.0 GB. [2021-03-25 18:29:38,320 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 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.76 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.91 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.2 MB in the end (delta: 912.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 278.14 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 237.5 MB in the end (delta: -3.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 881773.71 ms. Allocated memory was 255.9 MB in the beginning and 616.6 MB in the end (delta: 360.7 MB). Free memory was 237.1 MB in the beginning and 336.6 MB in the end (delta: -99.5 MB). Peak memory consumption was 389.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 128.0ms, 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: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 20, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , 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: 7.0ms, 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 10.7ms, 20 PlacesBefore, 19 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 24 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 68.7ms, 23 PlacesBefore, 22 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 18 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 65.3ms, 28 PlacesBefore, 27 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 20 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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: 65.6ms, 31 PlacesBefore, 30 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 20 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 34.8ms, 35 PlacesBefore, 33 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 20 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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: 51.1ms, 35 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 20 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 161.6ms, 45 PlacesBefore, 39 PlacesAfterwards, 29 TransitionsBefore, 26 TransitionsAfterwards, 26 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 50.6ms, 37 PlacesBefore, 36 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 20 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 97.7ms, 43 PlacesBefore, 39 PlacesAfterwards, 30 TransitionsBefore, 28 TransitionsAfterwards, 24 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 53.0ms, 39 PlacesBefore, 38 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 20 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 112.8ms, 45 PlacesBefore, 41 PlacesAfterwards, 32 TransitionsBefore, 30 TransitionsAfterwards, 24 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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: 56.1ms, 41 PlacesBefore, 40 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 20 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 122.5ms, 47 PlacesBefore, 43 PlacesAfterwards, 34 TransitionsBefore, 32 TransitionsAfterwards, 24 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 58.0ms, 43 PlacesBefore, 42 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 20 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 115.4ms, 53 PlacesBefore, 48 PlacesAfterwards, 37 TransitionsBefore, 35 TransitionsAfterwards, 26 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 108.3ms, 48 PlacesBefore, 46 PlacesAfterwards, 37 TransitionsBefore, 36 TransitionsAfterwards, 22 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: 0, 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 7.1ms, 51 PlacesBefore, 45 PlacesAfterwards, 34 TransitionsBefore, 34 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 51.6ms, 46 PlacesBefore, 45 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 16 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 54.3ms, 48 PlacesBefore, 47 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 20 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 54.2ms, 50 PlacesBefore, 49 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 20 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 56.1ms, 54 PlacesBefore, 53 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 24 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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: 65.3ms, 57 PlacesBefore, 56 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 24 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 44.6ms, 61 PlacesBefore, 60 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 24 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 61.3ms, 62 PlacesBefore, 61 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 24 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 89.0ms, 70 PlacesBefore, 69 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 32 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 59.1ms, 70 PlacesBefore, 69 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 32 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 104.9ms, 77 PlacesBefore, 73 PlacesAfterwards, 63 TransitionsBefore, 61 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 3 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 17.5ms, 72 PlacesBefore, 71 PlacesAfterwards, 63 TransitionsBefore, 63 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 90.4ms, 80 PlacesBefore, 77 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 32 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 41.6ms, 82 PlacesBefore, 81 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 32 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 51.8ms, 81 PlacesBefore, 80 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 32 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 113.4ms, 88 PlacesBefore, 84 PlacesAfterwards, 72 TransitionsBefore, 70 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 3 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 50.0ms, 84 PlacesBefore, 83 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 32 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 54.8ms, 87 PlacesBefore, 85 PlacesAfterwards, 73 TransitionsBefore, 72 TransitionsAfterwards, 32 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 62.9ms, 86 PlacesBefore, 85 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 32 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 66.3ms, 89 PlacesBefore, 88 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 36 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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): 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: 58.8ms, 90 PlacesBefore, 89 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 36 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 143.1ms, 98 PlacesBefore, 94 PlacesAfterwards, 82 TransitionsBefore, 80 TransitionsAfterwards, 42 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 54.4ms, 96 PlacesBefore, 95 PlacesAfterwards, 82 TransitionsBefore, 82 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 61.0ms, 98 PlacesBefore, 96 PlacesAfterwards, 83 TransitionsBefore, 82 TransitionsAfterwards, 40 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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): 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: 50.3ms, 97 PlacesBefore, 96 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 115.4ms, 104 PlacesBefore, 100 PlacesAfterwards, 86 TransitionsBefore, 84 TransitionsAfterwards, 42 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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: 64.4ms, 99 PlacesBefore, 98 PlacesAfterwards, 86 TransitionsBefore, 86 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 111.0ms, 105 PlacesBefore, 101 PlacesAfterwards, 88 TransitionsBefore, 86 TransitionsAfterwards, 42 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 66.3ms, 101 PlacesBefore, 100 PlacesAfterwards, 88 TransitionsBefore, 88 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 116.2ms, 107 PlacesBefore, 103 PlacesAfterwards, 90 TransitionsBefore, 88 TransitionsAfterwards, 42 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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: 68.9ms, 103 PlacesBefore, 102 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 131.9ms, 114 PlacesBefore, 108 PlacesAfterwards, 93 TransitionsBefore, 90 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 54.6ms, 105 PlacesBefore, 104 PlacesAfterwards, 92 TransitionsBefore, 92 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 136.9ms, 116 PlacesBefore, 110 PlacesAfterwards, 95 TransitionsBefore, 92 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 57.4ms, 107 PlacesBefore, 106 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 153.0ms, 117 PlacesBefore, 111 PlacesAfterwards, 97 TransitionsBefore, 94 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 56.7ms, 109 PlacesBefore, 108 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 132.8ms, 120 PlacesBefore, 114 PlacesAfterwards, 99 TransitionsBefore, 96 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 55.2ms, 111 PlacesBefore, 110 PlacesAfterwards, 98 TransitionsBefore, 98 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 98.9ms, 118 PlacesBefore, 114 PlacesAfterwards, 100 TransitionsBefore, 98 TransitionsAfterwards, 42 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 61.2ms, 113 PlacesBefore, 112 PlacesAfterwards, 100 TransitionsBefore, 100 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 95.0ms, 119 PlacesBefore, 115 PlacesAfterwards, 102 TransitionsBefore, 100 TransitionsAfterwards, 42 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 65.7ms, 115 PlacesBefore, 114 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 112.9ms, 122 PlacesBefore, 118 PlacesAfterwards, 104 TransitionsBefore, 102 TransitionsAfterwards, 42 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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: 22.7ms, 117 PlacesBefore, 116 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 177.2ms, 127 PlacesBefore, 121 PlacesAfterwards, 107 TransitionsBefore, 104 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 99.0ms, 124 PlacesBefore, 120 PlacesAfterwards, 106 TransitionsBefore, 104 TransitionsAfterwards, 38 CoEnabledTransitionPairs, 3 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 96.1ms, 123 PlacesBefore, 119 PlacesAfterwards, 106 TransitionsBefore, 104 TransitionsAfterwards, 42 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 67.9ms, 119 PlacesBefore, 118 PlacesAfterwards, 106 TransitionsBefore, 106 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 111.5ms, 126 PlacesBefore, 122 PlacesAfterwards, 108 TransitionsBefore, 106 TransitionsAfterwards, 42 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 69.9ms, 121 PlacesBefore, 120 PlacesAfterwards, 108 TransitionsBefore, 108 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 105.9ms, 128 PlacesBefore, 124 PlacesAfterwards, 110 TransitionsBefore, 108 TransitionsAfterwards, 42 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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: 58.7ms, 123 PlacesBefore, 122 PlacesAfterwards, 110 TransitionsBefore, 110 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 148.6ms, 133 PlacesBefore, 127 PlacesAfterwards, 113 TransitionsBefore, 110 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 77.4ms, 125 PlacesBefore, 124 PlacesAfterwards, 112 TransitionsBefore, 112 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 138.4ms, 132 PlacesBefore, 128 PlacesAfterwards, 114 TransitionsBefore, 112 TransitionsAfterwards, 42 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 61.1ms, 127 PlacesBefore, 126 PlacesAfterwards, 114 TransitionsBefore, 114 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 113.6ms, 134 PlacesBefore, 130 PlacesAfterwards, 116 TransitionsBefore, 114 TransitionsAfterwards, 42 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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): 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: 83.1ms, 129 PlacesBefore, 128 PlacesAfterwards, 116 TransitionsBefore, 116 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 104.9ms, 135 PlacesBefore, 131 PlacesAfterwards, 118 TransitionsBefore, 116 TransitionsAfterwards, 42 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 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: 61.5ms, 131 PlacesBefore, 130 PlacesAfterwards, 118 TransitionsBefore, 118 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 188.4ms, 141 PlacesBefore, 135 PlacesAfterwards, 121 TransitionsBefore, 118 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 75.7ms, 133 PlacesBefore, 132 PlacesAfterwards, 120 TransitionsBefore, 120 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 144.2ms, 144 PlacesBefore, 138 PlacesAfterwards, 123 TransitionsBefore, 120 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 78.4ms, 135 PlacesBefore, 134 PlacesAfterwards, 122 TransitionsBefore, 122 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 154.4ms, 145 PlacesBefore, 139 PlacesAfterwards, 125 TransitionsBefore, 122 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 63.1ms, 137 PlacesBefore, 136 PlacesAfterwards, 124 TransitionsBefore, 124 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 142.0ms, 147 PlacesBefore, 141 PlacesAfterwards, 127 TransitionsBefore, 124 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 68.3ms, 139 PlacesBefore, 138 PlacesAfterwards, 126 TransitionsBefore, 126 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 154.6ms, 150 PlacesBefore, 144 PlacesAfterwards, 129 TransitionsBefore, 126 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 67.7ms, 141 PlacesBefore, 140 PlacesAfterwards, 128 TransitionsBefore, 128 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 155.7ms, 152 PlacesBefore, 146 PlacesAfterwards, 131 TransitionsBefore, 128 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 68.7ms, 143 PlacesBefore, 142 PlacesAfterwards, 130 TransitionsBefore, 130 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 146.3ms, 153 PlacesBefore, 147 PlacesAfterwards, 133 TransitionsBefore, 130 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 95.8ms, 145 PlacesBefore, 144 PlacesAfterwards, 132 TransitionsBefore, 132 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 178.6ms, 156 PlacesBefore, 150 PlacesAfterwards, 135 TransitionsBefore, 132 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 75.1ms, 147 PlacesBefore, 146 PlacesAfterwards, 134 TransitionsBefore, 134 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 161.7ms, 158 PlacesBefore, 152 PlacesAfterwards, 137 TransitionsBefore, 134 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 25.9ms, 149 PlacesBefore, 148 PlacesAfterwards, 136 TransitionsBefore, 136 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 193.3ms, 159 PlacesBefore, 153 PlacesAfterwards, 139 TransitionsBefore, 136 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 112.0ms, 156 PlacesBefore, 152 PlacesAfterwards, 138 TransitionsBefore, 136 TransitionsAfterwards, 38 CoEnabledTransitionPairs, 3 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 151.5ms, 159 PlacesBefore, 153 PlacesAfterwards, 139 TransitionsBefore, 136 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 72.7ms, 151 PlacesBefore, 150 PlacesAfterwards, 138 TransitionsBefore, 138 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 171.1ms, 162 PlacesBefore, 156 PlacesAfterwards, 141 TransitionsBefore, 138 TransitionsAfterwards, 44 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 27.3ms, 153 PlacesBefore, 152 PlacesAfterwards, 140 TransitionsBefore, 140 TransitionsAfterwards, 38 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 192.0ms, 163 PlacesBefore, 157 PlacesAfterwards, 143 TransitionsBefore, 140 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 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: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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 - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 50). Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 11 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while ExplicitLhsPolynomialRelations was build 0 of 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 881676.2ms, OverallIterations: 104, TraceHistogramMax: 2, EmptinessCheckTime: 0.0ms, AutomataDifference: 25478.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 184.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1115 SDtfs, 339 SDslu, 115 SDs, 0 SdLazy, 21069 SolverSat, 1693 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9988.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1472 GetRequests, 459 SyntacticMatches, 102 SemanticMatches, 911 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 14556.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2133occurred in iteration=101, InterpolantAutomatonStates: 762, 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: 269.8ms SsaConstructionTime, 693.7ms SatisfiabilityAnalysisTime, 12609.4ms InterpolantComputationTime, 1876 NumberOfCodeBlocks, 1876 NumberOfCodeBlocksAsserted, 210 NumberOfCheckSat, 1671 ConstructedInterpolants, 0 QuantifiedInterpolants, 33096 SizeOfPredicates, 306 NumberOfNonLiveVariables, 3967 ConjunctsInSsa, 1477 ConjunctsInUnsatCore, 205 InterpolantComputations, 1 PerfectInterpolantSequences, 0/252 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